GrowWeedEasy.com teaches you the secrets of cannabis home grow.

• Start Here: How to grow weed
• Get Seeds: Best online seed sources (I like Seed Supreme)
• Sick Plants? See the plant doctor
• When to Harvest? Harvest guide

Get cannabis seeds at Seed Supreme or see our full list of our favorite cannabis seed banks.

Growing weed is easy when you know what to do, but most “how to grow marijuana” tutorials leave you feeling like you need a degree in horticulture.

GrowWeedEasy.com only contains useful cannabis grow tips, tactics, and lessons from actual home growers with years of growing experience.

Even a total beginner can consistently produce top-shelf weed by following our step-by-step home grow tutorials. 100% written by humans who care.

Who Made GrowWeedEasy.com?

Grow Weed Easy.com was started in 2010 by home growers Nebula Haze and Sirius Fourside. Together, we built a free online “encyclopedia of cannabis home grow” with 650+ expert home cannabis cultivation tutorials about every aspect of growing weed.

GrowWeedEasy.com is now the biggest and most comprehensive source of free home grow information in the world.  We show you how easy it is to grow your own marijuana at home.

The GrowWeedEasy.com Ethos

Our Goal: You grow as much top-shelf weed as possible, with as little time and effort needed to grow your desired yields and cannabis bud quality.

Whether you’re a total beginner who wants to start growing cannabis indoors for the first time, or an experienced grower who wants to upgrade your skills to Pro level, this website was built for you.

Looking for a complete harvest system?

If you want dense, beautiful, great-smelling weed, our new digital book gives you our complete harvest system. Follow the straightforward instructions and massively upgrade your next harvest. A few small changes can make a huge difference to your results.

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FOR SERIOUS GROWERS ONLY

🌟 $200 Off Special Offer: Enroll today in Home Grow Masterclass!

If you’re reading this right now, you want to grow great cannabis at home.

Cannabis plants isn’t a regular house plant, but learning how to grow isn’t as complicated growers make it seem. We’ve spent the last 16 years breaking down the home grow process so anyone can learn it.

The key to consistent harvest results is simple: follow a proven system developed for home growers.

You could waste an entire grow learning through trial and error…

Or take the shortcut and harvest a sea of fat, dense, beautiful buds that smell great. At home!

Follow our 5-week course and get walked through each part step-by-step. Build by experienced home growers and honed with hundreds of students since 2019, we ensure you achieve great results on your very next harvest.

Learn How To Grow Top-Shelf Weed at Home!

Start Your First Class TODAY!

You may be asking yourself these common growing questions:

“How do I grow marijuana indoors?”

Read this guide on how to grow marijuana indoors. Or check out this article to learn what materials you need to get started growing your own marijuana!

Luckily, it’s really easy to get a cannabis seed to sprout!

“How much money will it cost to get started?”

If you’re considering growing weed, it costs as little as $300 to get started growing or a bit more for a semi-automatic, high-yielding bubbleponics grow system. See examples of yields to expect, electricity use & startup costs for different setups. Read this article to see even more growing styles with different price ranges.

“Where can I get marijuana seeds?”

Check out our How to Buy Marijuana Seeds Online Guide (with delivery to every state of the USA) to safely get your hands on good genetics. Starting with good seeds lets you choose the looks, smell, and effects of your buds!

Learn where it’s safe to buy cannabis seeds online (2026 update).

What do good cannabis seeds look like?

Learn about the best marijuana beginner strains and how to research and find the right strain.

Cannabis buds are generally green, but can also be pink or purple with certain strains.

“How much will electricity cost each month?”

If you’re just growing a few marijuana plants for personal use, it will cost you $20-$100+/month for electricity, depending on what grow lights (electricity) and nutrients you use. On average, I’d say a hobby-size grower might pay about $50/month to grow, but it depends greatly on your setup and local electricity costs! How much will electricity cost each month?

“How can I increase my marijuana yields?”

We have quite a few techniques to choose from or combine! See some of our most popular pages:

• Super Cropping – A simple technique to bigger yields
• Simplest Guide to Growing Short & Bushy Marijuana Plants
• LST (Low Stress Training) – Training your plants can easily double your harvest!
• Or check out our page on the controversial defoliation technique

Even More Ways to Increase Cannabis Yields

1. Increase Light Intensity (plus choose right light for desired yields & possibly add CO2)
2. Manipulate How Plants Grow (a free way to yield more bud indoors)
3. Provide Right Nutrients (low Nitrogen in the flowering stage, and remember sometimes less is more!)
4. Control Growing Environment (let the growing environment work for you)
5. Harvest Plants Properly (most importantly, don’t harvest early!)
6. Lastly, it’s important to remember that the strain has a major effect on yields!

Two small cannabis plants can yield several ounces of premium weed!

“How can I grow weed privately?”

Read guide on growing weed indoors without anyone knowing. But remember the most important factors to stealth growing: “No tell, no smell, no sell.” Never tell anyone, not even your best friend, that you’re growing. Be on top of preventing smells, and never ever sell cannabis. Breaking one of those 3 principles is how 99% of growers get found out!

“What if my plants get sick?”

The most common issue a grower runs into is a pH imbalance. Barring that, your marijuana plants likely either have a nutrient deficiency, heat or light stress, or are being attacked by some sort of marijuana mold, pest or bug. Whether you call it weed, cannabis, sinsemilla, skunk, pot, marijuana, or something else, the plant known as Cannabis Sativa is a hardy weed in the wild and can actually be easy to grow indoors at home when you know what to do.

Growing Medical Marijuana

“Medical marijuana” has become a household name. The body of evidence for medical marijuana in the treatment of cancer and other illnesses is growing every day. And for those who need medical marijuana, growing weed indoors is the perfect way to ensure a safe, regular supply of buds, for cheap.

In fact, when you grow weed indoors for personal use, you often end up with way too much. If you catch the growing bug like I did, and if you start enjoying the process of tending your cannabis garden just for the sake of gardening, you’re going to have to find a way to press, cook, freeze, and concentrate all your extra buds. 🙂

As you probably know, both medical marijuana and recreational cannabis have been decriminalized or legalized in many places around the world and weed is becoming legal in more places every day! Yet there still aren’t many simple indoor “how to grow weed” guides for beginners (even for those who legally grow, such as medical marijuana users and those who live in places where marijuana is legalized for personal use).

If so, I know how you feel. It can be hard to weed out all the bad information on the internet and find well-researched, free tips or instructions on how to grow your own cannabis. That’s why Grow Weed Easy.com aims to be a simple online resource that explains from start to finish what you need to do when growing cannabis so you can learn how to grow cannabis with great yields and potent buds, even if you only have a small grow space like a closet or even a computer case.

We’ve grown cannabis out of closets and have gotten ounces of buds and you can too. Grow Weed Easy.com covers many popular cannabis cultivation topics, including:

• A comparison between different cannabis grow lights including experience-based information about LED grow lights
• A page that teaches you the basics of how to grow weed
• Detailed how-to weed growing tutorials
• How to start growing weed tomorrow  (simplest cannabis growing guide!)
• Grow 4 oz with a 100W LED <– An Easy Way to Start Growing!
• Our famous grow guide that teaches you how to grow weed using bubbleponics (hydro).

Start Growing Weed Today!

Grow Weed Easy is run by a panel of experienced cannabis growers, including the founders Nebula Haze and Sirius Fourside, who originally teamed together to bring you GrowWeedEasy.com. Due to the demand for more marijuana growing information, we’ve also started an inbox magazine all about how to grow weed, with additional tutorials, tips, and tactics sent to you each week. Simply sign up to start getting free expert growing articles delivered to you! All the information available at GrowWeedEasy.com is completely free and we regularly update the site and make new additions.

Looking for a growing book?

If you are interested in doing a bit of reading or would like to know more about the science behind marijuana hydroponics or horticulture, I strongly recommend viewing our page of Marijuana Grow Book Reviews. Read reviews of marijuana grow books. We would love to hear about your experiences with growing cannabis. Whether you are a pro grower already or are just starting your first plant, we have learned so much from our readers both beginners and masters! If you have any suggestions, comments, concerns, or just want to ask some questions about your marijuana grow, please contact us!

Happy Growing!
Nebula Haze & Sirius Fourside

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The post Grow Weed Easy – Learn How to Grow Cannabis Tutorials appeared first on Grow Weed Easy.

Emergency Resources for Sick Seedlings!

If you’ve got unhappy cannabis seedlings, I’ve got the solutions. Sometimes the hardest part of growing cannabis is just germinating the seeds and caring for seedlings. If you’ve never gardened or planted a seed before, you may have to learn everything from scratch. And with expensive and hard-to-get marijuana seeds, there’s a lot of pressure to get things right the first time.

This tutorial will help you with some of the most common seedling problems, so you can quickly get the fix. Make it so that your first few weeks go without a hitch.

Note: At GrowWeedEasy.com, we have resources for almost every common growing problem, so check out our cannabis plant doctor or use the search bar on the side of the website if you have a specific problem.

My Seedling Problem is…

If your seedlings are sick and you’re still investigating the problem, move your grow light up and don’t attempt to train your plants or do anything new until they’re better! If you avoid stressing them out any further, they often recover much more quickly.

Germination Problems

• Soil or Coco: Fail-Proof Germination Guide
• Hydroponics or DWC: Fail-Proof Germination Guide
• Are My Seeds Good? (How to Know if Seeds Are Viable)
• Seedling Growing Upside Down with Root Up

Germination problems? We’ve got you covered!

Yellow Leaves

• Why do seedlings turn yellow? – There are many reasons you might see a yellowing leaf on young plants, but this tutorial breaks down the most common.

This yellow seedling was overwatered. Seedlings don’t like “wet feet”. Too much water is the most common reason you’ll see yellow leaves on seedlings.

Curling or Clawing Leaves

• Clawing or curling leaves – Like yellow leaves, there are actually a few different triggers for clawing or curling, including watering practices and nutrient levels.

In this case, the clawed leaves are also from too much water. Small seedlings in big pots need careful watering until they’re drinking more.

Bad soil will sabotage you! Thick muddy soil prevents seedling roots from getting enough oxygen

Seedling is Wilting or Droopy

If you notice your plant is droopy all the time (even in the mornings right after lights turn on, when plants are at their perkiest), it usually means there’s something going on at the roots. The seedling might be getting too much or too little water at a time, possibly watering too often or infrequently, or its roots could be sick/damaged. The other major cause of drooping and wilting is high or low temperatures, and occasionally really high or low humidity.

• Overwatering vs Underwatering: How do you know?
• Root problems (coco or soil)
• Root Rot (hydro)
• Heat Stress
• Temperature Tutorial
• Humidity Tutorial

This seedling was given too much water for many days. Notice the green algae growing on top of the soil.

Underwatered seedling – When there’s not enough water at the roots, leaves are dark green, possibly clawed or droopy, and growth is slow

In hydroponics, when you see a droopy seedling it usually means there’s something bad happening at the roots

Burnt Leaf Tips

• Usually caused by nutrient burn (too much nutrients)
• Sometimes caused by a deficiency such as a copper deficiency
• Also caused by incorrect pH or overwatering/underwatering

Seedling with a single burnt leaf due to slight underwatering. You can tell it’s not nutrient burn because it’s only affecting a single leaf (nutrient burn tends to affect leaves all over the plant).

Why Are Stems Purple or Red?

• Could just be the genetics
• Can be triggered by cool temperatures or too-bright light
• Sometimes it’s a sign of stress or a deficiency
• Learn whether your red or purple stems are normal

Purple stems are normal for some strains, though they also appear on plants that are cold, stressed or experiencing a nutrient deficiency. Sometimes bright light triggers purple stems, like a tan.

This seedling appears healthy. If you don’t see any other symptoms, you probably don’t need to worry about it. But keep a close eye. If a seedling with purple stems also grows slow or has markings on the leaves, it means something is wrong. Investigate!

Why is My Seedling So Tall?

• If your seedling keeps growing taller and taller without a lot of leaves, it usually means it needs more light.

Tall, “leggy” seedlings need more light. They’re doing their best to stretch towards the nearest light source! Quick aside: Avoid germinating multiple seedlings in the same pot. It can be difficult to separate them.

Why Are Leaves Curling?

• This is often caused by heat stress or overwatering
• Sometimes too much light or very dry air can trigger it, too

These wavy leaves are the result of too much heat, and possibly slight overwatering

Another example of heat damage plus overwatering (the same triggers can be expressed in multiple ways)

More heat damage

Bugs or Pests

• Learn how to avoid Fungus Gnats (most common bug for new growers)
• Other Common Cannabis Pests

Learn more about fungus gnats

Something Else?

• Diagnose Your Sick Plant!

Re-vegging (pictured below) and other plant problems can be hard to diagnose. Use our free plant doctor tool to check your symptoms.

Bonus Articles!

• Common Seedling Problems and Mistakes
• 7 Common New Grower Mistakes and How to Avoid Them
• How to Test Cannabis Seedlings for Sex and Future Potency

​What to Focus on During Your Seedling’s First Month

• Perfect Environment – humidity, temperature, airflow, CO2/fresh air, reflective walls, etc
• Enough Light – If your seedlings are growing tall it means that they want more light! Remember, in the flowering stage your yields will be directly related to how much light your buds are getting!
• Not Too Much of Light – Too much light can hurt your plants even in cool temperatures! Seedlings are more sensitive than adult plants, so be careful not to overload them with light too quickly! If you think your seedlings may be stressed from too high levels of light, move your grow light up a few inches and see if they improve.
• Watering properly (one of the hardest parts for a lot of new growers!) – How to Water Plants Perfectly Every Time. I promise it gets easier!
• Not Too Much Love – Seedlings need some breathing room! (i.e. avoid overwatering, touching/messing with plants too much, giving too high levels of nutrients or supplements, etc.). They want you to love them and watch out for them, but they also need to get work done 🙂
• Start Thinking About Plant Sex – For several weeks after germination, a plant’s sex is hidden and has little effect on how your plants grow. However, if you are not familiar with the difference between male and female plants (only female plants make buds), now is the perfect time to read up!

The post Cannabis Seedling Help Handbook appeared first on Grow Weed Easy.

When I was first learning about how to grow cannabis, I learned about the importance of pH to prevent nutrient deficiencies. But sometimes your pH is in the recommended range and your marijuana plants leaves are still showing signs of nutrient deficiencies.

What else besides incorrect pH causes nutrient deficiencies in cannabis plants?

Basically, when it comes to cannabis plants, your plant starts experiencing nutrient deficiencies if the pH is too high or too low at the roots. This is because the chemical structure of nutrients actually changes at different pH levels, and some versions are easier for the plant to absorb than others.

By giving your plants good cannabis nutrients and managing the pH, you’ll be able to prevent most nutrient deficiencies, ensuring your plant grows as fast and healthy as possible.

But what do you do if you’re using good nutrients and the pH is right but you’re still getting nutrient deficiencies?

When it comes down to it, nutrient deficiencies usually start at the roots, whether it’s pH or something else. This looks like a nutrient deficiency, but it’s actually caused by overwatering.

One of the most common reasons to see deficiencies when the pH is correct is the plant is being over or under-watered, which can also be related to the drainage of the grow medium and the container your plant is in. When the plant isn’t getting the right ratio of water and air at the roots, it will tend to start showing deficiencies even if everything else is right. Other issues with roots are also common culprits.

Causes of Most Nutrient Deficiencies

• PH is too high or too low ← Most Important!!! But if you’re on this page you’ve probably already got this covered.
• Not enough nutrients overall (here are recommended cannabis nutrients)
• Over-watering
• Under-watering
• Pot is too big for the size of the plant
• Plants are rootbound (been in the same pot too long)
• Too hot (and rarely too cold)
• Bugs or pest infestation

Note: Basically anything that makes your plant droopy is likely to cause nutrient deficiencies, too.

Although pH and watering practices are probably the most important thing to pay attention to, there’s more than just pH as far as your plant roots are concerned. The “alkalinity” of your water is also important. Alkalinity is related to pH, but it is also its own thing. In a way, alkalinity measures how much “stuff” is in the water that causes the pH to go up. And this also affects nutrient absorption.

If you’re still having trouble after going through the steps above, and your pH is in the right range…

• If you have “hard” water, you should generally aim for a slightly lower pH (aim for around 6.5 pH for soil and 6.0 pH for coco or hydro).
• If you have “soft” water, you should generally aim for a slightly higher pH (aim closer to 7 pH for soil and 6.5 pH for coco or hydro).

I hope that helps some people dial in the correct pH based on their starting water.

Jump to…

Tips to Growing Top-Shelf Buds

How to Measure & Adjust PH

Which Nutrients Should I Use?

7 Steps to Fix 99% of Growing Problems

The post Why are cannabis plants getting nutrient deficiencies when the pH is correct? appeared first on Grow Weed Easy.

Table of Contents

Why Flush Cannabis Plants in the First Place?

• Which growers should flush?
• How to prevent the need to flush

How to Flush a Sick Marijuana Plant (without harming it)

How to Fix Incorrect pH Without Flushing – Do this if possible!

Why Should I Flush My Sick Marijuana Plants?

The main reason to flush your sick cannabis plants is to try to correct something wrong at the roots. Flushing means watering your plants with lots of plain water at once. All that extra water leaches out extra nutrients or salt buildup in soil or coco coir. Flushing can also be used to address nutrient deficiencies caused by incorrect pH near the roots. However, flushing is stressful for plants, so it should be avoided unless you have no other choice. This tutorial will teach you when to flush your plants, and when you should address your sick cannabis plants a different way.

Flushing plants with lots of water makes them droopy, and should be avoided if possible. Take good care of plants and you’ll never need to flush. But when it comes to growing, things don’t always go according to plan! If that happens, this tutorial will guide you on what to do.

The following cannabis plants were flushed due to nutrient deficiencies.

When flushing is done properly, your cannabis plants should quickly bounce back and start growing healthy without deficiencies.

Related Article: How to Flush Cannabis Plants Before Harvest to Improve Bud Taste

The most common reasons to flush sicks plants are…

• Fix pH – The pH at the roots is several points too high or too low, causing major nutrient deficiencies
• Flush Out Additives That Made Plant Sick – It’s important to flush a plant that has been watered with something that has made it sick, for example if it is losing leaves because it was recently watered with a pesticide, nutrient or supplement that was too strong.
• Leach Out Time-Release Nutrients – If transplanting isn’t an option, sometimes a grower will flush a plant that is being grown in soil with “time release” nutrients (like Miracle-Gro soil). This idea is to try to leach out extra nutrients (specifically nitrogen) before the flowering stage begins. Too much nitrogen in the flowering stage can give buds a “green” taste as well as actually prevent buds from getting as big as they normally would. Since time-release soils slowly releases nitrogen for months it’s important to flush that out before your plant starts making buds.

If your cannabis plant gets sick the day after you add a new supplement for the first time, you should probably flush your plant to “start fresh” at the roots.

Which Growers Should Flush Their Plants?

Flushing sick plants is for…

• Soil
• Coco coir
• Other soilless mediums

Flushing sick plants is NOT for…

• Hydroponic or DWC grow setups – if you have a nutrient or pH problem, just change the reservoir so it has exactly what you want

How to Prevent the Need to Flush Your Plants

• Start Nutrients at 1/2 Strength – When using a new type of nutrients for your cannabis plants, it’s a good idea to start at 1/2 strength at first. It’s also a good idea to start any pesticides or supplements at half strength until you see how your plant reacts.
• Give More Nutrients to Pale Plants – Increase nutrient dose if the overall plant is starting to look pale or lime green.
• Lower Nutrients for Dark Leaves or Nutrient Burn – If you notice plants are getting dark green in color, try lowering nutrient levels or giving plain water every other watering until their color has improved. If you notice brown crispy tips on the leaves all over the plant, that’s another sign of the plant overall getting too much “stuff” (whether nutrients or supplements) in the water. If the dark leaves or brown tips are the result of too much nutrients, usually you’ll see these symptoms all over the plant instead of just a few leaves.
• Check pH for Other Nutrient Deficiencies – If you seen nutrient deficiencies like yellow leaves, spots, or brown markings, the first step is to check and adjust the pH of the water you give your plants. Maintaining the right pH is the #1 way to prevent nutrient deficiencies. Simply do this one check when you water, and you’ll dramatically reduce the chance you’ll even need to flush (pH being too high or too low is the main reason to flush plants). Learn more about nutrient deficiencies.
• Reduce Light Levels on Sick Plants – When plants are sick, try moving the grow light up a few inches or even a foot. This will help your plant recover more effectively from many nutrient problems, whether you end up flushing the plants or not.

Try to prevent nutrients problems before they happen so you never need to flush!

How to Flush Sick Cannabis Plants

1. Make up water with low levels of nutrients (1/4 strength or seedling dose). You want to take out the bad and replace with the good.
2. Give 3x the pot size – Use enough water so that you’re giving the plant 3x as much water as the volume of the pot. It may take a little while. Remove all runoff water immediately, you don’t want your plant to suck the bad stuff back up!
3. Give regular strength nutrients at the end – Make up one last batch of nutrient water at regular strength, and give this to your plants. You are replacing what you took out with what you want to be there – fresh, pH’ed nutrient water!
4. Make sure there is a fan blowing over the top of the growing medium to help it dry out so plants don’t get as droopy from being overwatered. There should be plenty of air circulation in the grow space, with access to lots of fresh air.
5. Raise your grow lights up a few inches while your plant is recovering. Your plant definitely needs plenty of light, but you don’t want to make it work too hard during the recovery period.
6. Wait a few days for improvement – Although your plant may get droopy at first, you should start to see improvement within a few days. Try not to water it again until the top inch is starting to dry. It’s not recommended to flush a plant two times in a row. After the first flush you should have flushed out what was hurting the plant in the soil. At this point, it’s time to give your plants some TLC while you get things back on track.

How to Fix Incorrect pH Without Flushing

1.) Determine your target pH

• Soil: 6-7 pH
• Coco: 5.5-6.5 pH

2.) Collect runoff

Give your water at the correct pH, and collect runoff water out the bottom. Is the pH too high or low? If the pH is higher or lower than the correct range, don’t panic! At the very least you’re already giving your water at the correct pH from on top. That will help the plant stay healthy while you fix whatever is going on at the roots. Now, onto fixing your pH.

3.) Start fixing the pH the next time you water your plants.

If you already have major nutrient problems, you might consider flushing as stated above. But if you don’t see problems yet, or if you only see just a little bit of leaf discoloration or yellowing, there’s no need to flush. Flushing is very stressful for plants and may prevent them from recovering as fast as they could, so it should be avoided if possible.

Most of the time, if your runoff pH was too high or too low, it’s better to wait until your next watering to start correcting it.

4.) Always give water in the correct pH range, but at the opposite end.

Next time you water your plants give water in the correct range, but at the opposite end of the range to start trying to get it to move in the other direction.

If your runoff water is coming out at 4.5 pH, it means you should water your plants at the high end of your desired pH range. So for soil you would water your plants at 7.0 pH, and with coco you’d water your plants at 6.5 pH.

This ensures that your roots are getting some amount of nutrient water at the correct pH, while also starting to leach out whatever is in the growing medium that’s dragging the pH down.

5.) When pH of water going in and out mostly match, you’re good!

Eventually, your pH is going to start coming out the bottom of the plant in the right pH range, even if it takes a few weeks.

Collect the runoff water and check to make sure the pH isn’t too high or low. Proper pH stops most nutrient deficiencies!

I’ve found that correcting the pH following this process seems to stop most nutrient problems within just a few days, while preventing your plant from getting stressed from a true “flush.”

—

I wish I had known this before I started growing. I’ve done too many unnecessary flushes and unintentionally stressed out my plants. I hope this help guides you to better results in your cannabis growing journey.

Happy growing!

Nebula Haze

Jump to…​

Diagnose My Sick Plants!

How To Get To Harvest As Fast As Possible

Where to Get Marijuana Seeds Online

The Perpetual Harvest

The post How to Flush a Sick Cannabis Plant appeared first on Grow Weed Easy.

When your cannabis plant gets sick, the natural reaction is to diagnose the sickness and fix the root of the problem.

But is there anything you can do in the meantime to help your plant while it recovers?

The following tips are easy-to-do treatments your can perform to provide relief to your plant for almost any kind of stress. The following steps are sort of like a general health "tonic." Although these things might not fix a problem on their own, they will help your plant recover more quickly!

Some symptoms are common when the plant is stressed, regardless of what is causing the stress. As long as you fix the root of the problem, the tips on this page will help plants recover more quickly from problems like…

• Wilting, drooping or all-over yellowing from common issues like root problems, light burn, overwatering, underwatering, etc
• Nutrient deficiencies
• Heat stress
• Pest infestations

Stress-Relieving Supplements

Supplements aren't magic, but they can definitely help make things a little easier for your plants. The best cannabis supplements for stress are:

Kelp (Seaweed)

Kelp contains trace amounts of hundreds of micronutrients and minerals, as well as unique, not-well-understood properties that seem to sooth stress for many types of plants including cannabis. Due to it's overall usefulness you will see sea kelp as an ingredient on many different types of supplements and sometimes even included as a part of base nutrients.

I use a company called General Hydroponics for my main nutrients, and they offer a great all-around supplement called Floralicious Plus. F+ contains not only sea kelp but a slew of other helpful ingredients like amino acids, humic acids, vitamins, complex sugars and more. Due to it's relatively low macronutrient content, a small amount can be safely used as a supplement alongside a regular nutrient program without causing nutrient burn.

But althout it's my choice, F+ definitely isn't your only choice; most nutrient companies offer a similar product, and whenever possible it's a good idea to get supplements from the same company as your main nutrients, just to make sure there's no unexpected interactions.

Silica (Si)

Silica is a supplement that can help strengthen individual cell walls of your plant. Although extra silica usually isn't necessary for healthy growth, providing it to your plant on a regular basis will not only make the plant physically stronger against physical stress (like a light falling on it), it will be more hardy against stress from heat or cold. Silica can also help make certain nutrients more available to the plant, including phosphorus, boron, copper, iron, manganese and zinc, while protecting roots from absorbing certain toxic substances like aluminum and sodium.

Overall, silica won't cure anything, but a silica-supplemented plant tends to be more robust even in adverse conditions! When supplementing silica I use Armor Si by General Hydroponics, though most nutrient companies offer a silica product that goes along with their nutrient line.

Compost Tea

Compost tea is a common name for a water solution that has been soaked in compost. Compost tea is pretty amazing stuff and can carry the power of composted soil (which plants love) and make it immediately available to your plants in liquid form. It contains nutrients, microorganisms and more, and growers have been brewing compost teas for their cannabis plants as long as people have been writing about growing cannabis!

Compost Tea – capture some of the power of compost, but in liquid form!

Compost tea is a great supplement for soil growers, though hydroponic growers should avoid compost teas (or anything with a lot of organic material – hydro growers should use a root supplement specifically made for hydro like Hydroguard).

Plants that have been supplemented with compost tea may grow greener, faster, and be more resistant to disease and nutrient deficiencies. You might be surprised to find out your local hydroponic store or gardening center sells or even gives compost tea away for free if you bring your own container. It's also common for growers to make compost tea at home, though it can be a little messy. For those who want to just try it out with a bottled product, Botanicare offers a very well rated compost-tea-in-a-bottle product called Pure Blend Tea.

Reduce Light Levels

If you take a cannabis plant and give it relatively low levels of light, it won't grow as fast but it will tend to turn grow lush and healthy. In fact, you can see this principle in action with most indoor cannabis plants, because the leaves that don't get direct light tend to be darker and more green than the ones directly under the grow light.

Notice how the leaves lower down and around the edges of this cannabis plant are more lush and green than the leaves directly under the grow light. In fact, if light levels stay too high for too long, leaves may actually die early due to light burn.

Although too-bright light comes with risks, generally growers keep light levels as high as they can in order to get plants to grow faster. The extra photosynthesis is why plants under powerful grow lights tend to grow bigger and faster than plants kept under less powerful lights. By making the plant work harder you're rewarded with more growth.

However, since a hard-working plant is more susceptible to deficiencies and other problems, if growing problems do come up, one easy and effective way to dramatically reduce stress on the plant is simply to lower the light levels.

The most common way to do this is to raise the grow light higher. Some grow lights (or rather, their ballasts) also let you reduce the power.

An easy way to reduce stress on your plant is to raise your grow lights (or reduce their power) – plants can recover from stress more quickly when light levels are relatively low

Slightly Longer Night Periods

If your plant has less "to do" than it will be able to focus more on getting better, and less on just doing the hard work of photosynthesis. So in addition to lowering the light levels, you can also give your plant slightly longer night periods during the times of stress, and put them back to normal after your plant has recovered and is growing fast and healthy.

Vegetative stage – Give plants only 17-18 hours of light a day until plants recover (compared to the more common 18-24 hours of light a day usually recommended for the vegetative stage)

Flowering Stage – Give plants 12 hours of light a day (don't give longer night periods in the flowering/budding stage unless you want your plant to mature faster – giving cannabis plants less than 12 hours of light a day can result in a quicker harvest but reduced yields)

Tackle Temps

Too much heat (and cold) is stressful for the plant as it can't properly fulfill all its regular life processes. Keeping a temperature that's comfortable for humans also happens to be optimal for the plant. 

Since most growers who struggle with temperature are dealing with too much heat, the other steps we've gone through actually make this part easier. With reduced light and shorter day periods, your plants will likely be experiencing cooler temperatures anyway.

By keeping your temperature between 70-80°F (21-27°C), you are taking temperature out of the equation as a possible stressor. At comfortable temps, your plant will tend to be better able to heal itself and make smoother recovery from problems like heat stress, nutrient burn and nutrient deficiencies.

Learn how to tackle temps!

Next time you see a plant problem, don't panic! Diagnose the problem then follow as many of these tips as you can during the recovery and before you know it your plant will be back on track!

Jump to…

5 Secrets to Controlling Heat

Hermies, Bananas & Male Plants (common side effect of plant stress)

What does pH have to do with nutrient deficiencies?

7 Tips to Growing Top Shelf Buds

The post Plant Health “Tonic” for Faster Recovery! appeared first on Grow Weed Easy.

In addition to the search bar, this link guide helps you navigate through the Grow Weed Easy website. Learn about growing topics you won’t find anywhere else! This is a shortened list of all our cannabis growing tutorials, as the website has over 500 articles and tutorials!

Full List of EVERYTHING on GWE  ← Over 500 Articles & Growing Tutorials!

Start Here – Beginner Grow Guides

• Complete Beginner’s Guide
• How do I start growing my own weed indoors? (get help choosing your setup)
• How to Grow Weed in 10 Steps
• Simplest Cannabis Grow Guide Ever!
• How Long Does It Take to Grow Weed? (Marijuana Growth Timeline)
• 3 Steps from Beginner to Legendary Grower
• Complete New Grower’s Shopping List

Cannabis Life Stages

• Germination
• Vegetative Stage (Getting Bigger)
• Flowering Stage (Making Buds)
• Harvest

Choosing…

• Best Type of Nutrients
• Choosing the Best Grow Light
• Soil vs Hydro
• How Many Plants Should I Grow?
• What Part of the House Should I Grow In?
• What Setup Should I Get?
• Best Strains for Beginners
• Where to Get Seeds (including the U.S.)

Common New Grower Topics

• How Much Will Electricity Cost?
• Stealth Growing: How NOT to Get Caught Growing Weed
• What Equipment Do I Need?
• Germinate Your Seeds
• 7 Things I Wish Someone Had Told Me When I First Started Growing Weed
• How to Save Money When Growing Weed
• How to Store Weed Properly (so it never loses smell or potency!)
• Ask Questions & Get Answers From Real Growers! (In Our Free Growing Community)
• Cannabis Grower’s Glossary

Problems & Symptoms

• Cannabis Problems Guide
  • How to Help Yellow Seedlings
  • How to Fix Yellow Cannabis Leaves
  • How to Fix Curling and Clawing Cannabis Leaves
  • What Causes Dry or Crispy Leaves?
  • What Causes Brown Spots on Cannabis Leaves?
  • What Causes Bananas (“Nanners”) on Cannabis Buds?
  • Is This Nutrient Burn on My Marijuana Plant?
  • What causes red stems in cannabis plants?
• Diagnose Your Sick Plant
• Bugs & Other Cannabis Pests
• How to Prevent Nutrient Deficiencies
  • Which Nutrient Deficiencies are Caused by pH? (picture guide)
  • How to Stop Flowering Stage Nutrient Deficiencies
• 7 Reasons Why Cannabis Plants Grow Slow
• 5-Step Remedy That Fixes 99% of Grow Problems
• All-Natural Pesticides – Safe Up to Harvest!

Plant Training (Indoor Tricks for Bigger Yields)

• Simplest Plant Training Guide Ever!
• How to Control Height of Indoor Cannabis Plants
• Complete Plant Training Guide
• Breakdown of Techniques​
  • Low Stress Training (LST) Tutorial
  • Topping vs FIMing Tutorial
  • LBH’s Famous ScrOG Tutorial
  • Supercropping: Magic Technique to Control Cannabis Plant Height
  • Sea of Green (SoG) Tutorial
  • 12-12 from Seed – Flowering Plants Early
  • Nebula’s Manifold Tutorial
  • How to Manifold Clones
  • Nebula’s Bud-Based Defoliation Tutorial
  • Alternate Defoliation Tutorial ​
  • What is Re-Vegging / Monstercropping?
• How Can I Train an Auto-Flowering Plant?
• 7 Unfortunate Plant Training Mistakes

Grow Mediums

• What’s the Best Growing Medium?
• Soil vs Coco vs Hydro
• Basic Soil Guide
• Organic Soil Compost Guide (Super Soil) – Just Add Water!
• Coco Coir Guide
  • Coco Coir: The Most Flexible Cannabis Grow Medium
• Hydro/DWC/Bubbleponics Guide
• “True” Organic Growing vs Just Using Organic Nutrients
• Can You Use Miracle-Gro?

Nutrients

• Which Nutrients Are Best For Growing Cannabis?
• Soil Nutrients
• Coco Coir Nutrients
• Hydroponic Nutrients

Grow Lights

• 5 Best LED Grow Lights 2025 (Yields, Speed, & Bud Quality)
• Compare Types of Cannabis Grow Lights
  • Fluorescents (T5s) – Good for Seedlings Only (not powerful enough to produce potent buds or big yields)
  • CFLs (Spiral Bulbs) – Not Recommended (LEDs are much better)
  • LED Grow Lights – Recommended for Most Home Growers
  • MH/HPS Grow Lights – Good Alternative to LEDs, But Run Much Hotter
  • CMH / LEC Grow Lights – Good Alternative to LEDs, But Run Much Hotter
  • Plasma / Magnetic Induction Grow Lights – Not Recommended (poor cannabis growth)
• How Does Light Spectrum Affect Marijuana Plants?
• How Far Away Do I Keep My Grow Lights?
• You Can Actually Give Plants Too Much Light?!
• Grow Light Upgrade Guide: Yields & Potency Explained
• Cannabis Grow Lights: What’s the Best Size?

Best LED Grow Light Articles

• 5 Best LED Grow Lights 2025 (Yields, Speed, & Bud Quality)
• LED Grow Lights: Too Much or Not Enough Light?
• LED Grow Journal: Mars Hydro TSL-2000W vs Spider Farmer SF-2000
• LEC vs LED Grow Lights: Side-by-Side Cannabis Grow Journal
• Nebula’s Auto-Flowering Grow Journal (Topping vs Natural) – cannabis plants are grown under LED grow lights

Environment

• Create the Perfect Growing Environment
  • Temperature Tutorial
  • 5 Secrets to Heat Control
  • Control Humidity for Better Buds
  • How to Use Reflective Walls to Increase Yields Indoors
  • How to Make Plants Grow Faster with CO2
• Where’s the Best Place in the House to Grow Your Plants?
• How to Control Odors
• How to Set Up an Exhaust
• How to Set Up a Grow Tent for Better Yields (and Stealth)

Plant Care Tutorials

• Cloning
  • How to clone weed in a cup of water (easy!)
  • How to make cannabis clones with an aero cloner
• Intro to Plant Training for Bigger Yields Indoors
• How Often to Water Plants
  • The Easiest Way to Water Plants & Remove Runoff
• How (and When) to Transplant Cannabis
• Male vs Female Plants
• When to Harvest?
• Drying & Curing

How to Improve…

• Yields
• Bud Quality
  • 7 Environment Effects on Bud Quality
  • The Secret to Excellent Bud Quality
• THC Levels
• CBD Levels
• Smell/Taste
• Density
• Bud Color (How to Grow Pink or Purple Buds)
• Glitter (Make Buds Sparkle with More Trichomes)
• Bonus: What Determines Yields?

Buying Seeds

• Where to Get Seeds
• How to Find the Right Strain
• What are “Feminized” Seeds?
• Which Breeders to Trust?
• Photoperiod vs Auto-Flowering Cannabis Strains
• Bag Seed vs Hype Seed: Is it worth it to buy cannabis seeds?

Recommended Strains

• Best Autoflowering Cannabis Strains for Yields & Potency
• List of Sugar-Dusted Strains (Heavy Trichome Genetics)
• 10 Cold-Resistant Cannabis Strains
• 14 Heat-Resistant Cannabis Strains
• Which cannabis strains stay short? (Best strains for small spaces)

Auto-Flowering Strains

• Nebula’s Guide to Cannabis Auto-Flowering Strains (Photoperiod vs Auto-Flowering)
• Should I “Top” or Train an Auto-Flowering Plant?
• What’s the best light schedule for auto-flowering strains?
• Nebula’s Auto-Flowering Grow Journal (Topping vs Natural)

Edibles

• Decarboxylation: How to Decarb Your Weed (crucial step for just about every edible recipe)
• Best Weed Butter Recipe
  • How to Make Great Brownies with Weed Butter
• Canna Caps
• How to Make Cannabis Gummies (Weed Gummy Bears)
• How to Make Cannabis Tinctures
• How to Make Hash Oil (aka Cannabis Extract Oil, Rick Simpson Oil, or RSO)

Extracts (No Solvents Used in Any Recipe)

• Solventless Extraction Showdown – Bubble Hash vs. Dry-Ice Hash!
• Dry Ice Hash (Made with Dry Ice)
• How to Make Bubble Hash (Made with Ice Water)
• How To Make Your Own Homemade Rosin (dabs)

And Lots More!

• How Long Does it Take to Grow Weed?
• Vegetative vs Flowering Stage (Long Days vs Long Nights)
• Germination & Seedling Mistakes
• Simple Guide to Plant Training
• What’s the Best Pot / Container?
• Perpetual Harvest
• What Determines Yields?
• 5 Time-Savers for Busy Growers
• Breeding Techniques
• 7 Gift Ideas for Cannabis Growers
• Grow Journals
• How long can I store nutrient water?
• What is High-Frequency Fertigation?
• Where is it legal to grow weed in the USA?
• See EVERYTHING on the Site!

Safety & Preparation

• Fire Protection in the Grow Room
• Electrical Safety Tips & Tricks
• Prepare Yourself for Growing Emergencies
• Stealth Growing Indoors: How to NOT get Caught Growing Weed

Just for Fun

• Weird or What? Cannabis Mutations & More!
• Creatures on Cannabis (Cute Photo Gallery)
• 10 Gift Ideas for Cannabis Growers

Submit Pics

• Submit Trophy Pictures of your Plants!
• How to Take Better Plant Pics
• How to Fix Yellow HPS Pics

Want More?

• Complete List of EVERYTHING on GWE  ← Full List (Over 500 articles & growing!)

Thanks for visiting! We hope our website helps you find the growing tutorials you were looking for. We’ve written hundreds of growing marijuana articles and unfortunately we can’t fit them all on this page, so we encourage you to use the search bar on the right side (or top of the page for mobile users) to search for articles you don’t see here.

Happy growing!
Nebula & Sirius

Use this “Navigation” page to find the pot growing topic you’re interested in, or click here to see every single page on the website!

The post Link Guide to Growing Cannabis Tutorials appeared first on Grow Weed Easy.

If you’ve ever tried to learn how to grow cannabis online or via cannabis growing forums, you’ve probably seen a lot of abbreviations thrown around.

LST, TDS, par, EC, HPS…there are just too many!

One that you’ve probably seen by now is “ppm”.

If you’re like me, you’ve probably avoided learning about this term altogether as it seems to add another layer of complexity to cannabis growing. However, when I finally looked into it, I realized it wasn’t a complex topic at all and it helped me grow better weed.

Today, I will clear up some of the most common questions on the subject, such as “What is ppm?”, what a TDS meter has to do with all this, and some other info so that you will be empowered with new knowledge. The best part is that it’s really simple and there isn’t a lot to it.

Read on for a quick upgrade your growing knowledge!

What IS PPM?

PPM is a unit of measurement, and it’s an initialism for Parts Per Million. This term is used in cannabis cultivation to refer to the concentration of Total Dissolved Solids (TDS) in the water you give your plants. This is a way for growers to refer to exactly how much minerals and other substances are in their water. This information is useful since plants can only intake so many minerals and stuff at a time. This is also useful for DWC growers who need to know the current condition of their reservoir water.

1 part per million is the equivalent of 1mg of solubles per liter of water which is a minuscule amount to measure! Drinking water tested in the US can measure as low as 0ppm (for reverse osmosis, or distilled water) or as high as 700ppm (very poor quality tap water), but most tap water will fall in the 200ppm-400ppm range.

What Is A TDS Meter?

A TDS meter is a tool used to measure ppm. Technically, you measure the TDS of water, and you measure it in ppm. However, most people just skip over TDS and use ppm for both terms.

There are many TDS meters of varying cost and abilities; some also measure temperature or have hold buttons, some measure a higher range of ppm than others.

For those looking into purchasing a TDS meter, know that the range of ppm a particular meter measures shouldn’t be much of a factor for you. Some TDS meters measure up to 5000ppm and some go up to 9999ppm, but for cannabis cultivation, you will rarely see anything above 3500ppm. In fact, in all of the General Hydroponics feeding schedules, the highest ppm is calls for is 1500ppm max. This doesn’t mean you need a meter that only reads up to 1500ppm, but it does mean the ability of a meter to read over 5000ppm probably isn’t needed.

What Is an EC Meter?

EC meters measure the Electrical Conductivity of the water they’re testing. This reading is useful for…measuring the amount of solubles in your water!

So, what’s the difference between a TDS meter and an EC meter?

When it comes to growing cannabis, there isn’t much of a difference at all. In fact, many TDS meters actually measure the electric conductivity of liquids and then convert those results into ppm. In other words, many TDS meters are actually EC meters in disguise!

Electrical conductivity is measured in S/m (Siemens per meter…no giggling!), but since we’re dealing with stuff on such a minuscule scale, readings will show up as μS (micro – one millionth – siemens per meter) or mS/m(milli – one thousandth – siemens per meter).

Although EC meters function just as well if not better than TDS meters, I would recommend against getting one. Most feeding charts or sources of information that talk about water quality will give measurements in ppm. EC meter readings (mS/m) can easily be converted to ppm, but you’ll save yourself some trouble by starting in the right unit of measurement.

It’s not that TDS meters are better than EC meters. In fact, EC meters are a more accurate and consistent way to measure stuff in your water. TDS meters (and ppm as a unit of measurement) are more widely used so it ends up being a more convenient choice.

Do I Really Need to Measure PPMs?

For a large part of my growing career, I ignored using a TDS meter or even learning what they do. Although I don’t recommend that strategy as a way to deal with any of your problems, I can say that I still managed to grow sticky, potent bud despite my resistance to learn about the subject.

In short, I’m confident that anyone can grow a beautiful set of plants from seed to harvest without ever needing to invest in a TDS meter.

However, having a TDS meter can help to prevent or solve problems with nutrient burn and/or overfeeding your plants. If you frequently find that your plants suffer from nutrient burn despite giving them a very small amount of nutrients, you might want to invest the $25 or so to get a TDS meter. Note: If you get a TDS meter, you are definitely going to need calibration solution to make sure the meter is giving you proper readings. I recommend 1000ppm calibration solution which will cost about $10.

How to Measure PPM

This is a really easy process!

1. Get a TDS meter. I recommend the HM Digital AP-1 as it’s cheap, it has a few handy features(hold button, on-screen temperature), and it doesn’t seem to need recalibration often if at all.
2. Get calibration solution. This isn’t absolutely necessary, but I would definitely recommend it as sometimes meters come out of the package needing calibration.
3. Calibrate your TDS meter. Instructions will be on the package; the whole process takes 1 -3 minutes.
4. Turn on the TDS meter, wait for it to read zero, and insert the electrode into the water you’re testing. If you have a hold button, press it to lock the ppm in. If not, make a note of what the meter reads.

That’s it! You now have the ppm of the water you’re testing. Keep in mind this can be done to several things to give you helpful information:

• Your tap water
  • Know what’s in your water before you add nutrients to it. Hard water (water with lots of “stuff” in it) can make it so you need very little nutrients before your plants get nutrient burn.
• Nutrient water
  • Make sure you’re not giving your plants water that will (nutrient) burn them.
• DWC/Top Fed DWC Reservoirs
  • Make sure the nutrient concentration in your reservoir isn’t spiking as the amount of water goes down. Also, knowing the ppm of your reservoir water makes it easy to grow pristine plants.

What to Do with This Information

Once you have your ppm, you can make proper adjustments to get it in the desirable range. Speaking of which, you’re going to need to know what ppm range you want for your water. This can vary depending on which nutrients you use, but here are some good guidelines:

• Tap water: 400ppm or below; 400 is high for tap water.
• Nutrient Water: 400ppm – 800ppm total
• DWC Reservoir water: 400ppm – 1000ppm

Now that we have our goals, we can make the proper adjustments to get the ppm to where it should be. Here are a few water-related issues you might into and some handy solutions.

Tap water ppm is too high:

• There are several home options available which can drastically lower the ppm in your tap water. Some of these include carbon filtering, distillation, and reverse osmosis. Reverse osmosis will clean your water so effectively that you’ll need to add calcium/magnesium back into the water.

Adding a normal amount of nutrients makes ppm too high:

• This means you’re probably using water that had high ppm before the nutrients. Try using nutrients made for “hard water”(water with a high concentration of minerals), such as Flora Micro Hard Water. This will lower the overall ppm.

DWC Reservoir ppm is too high/low:

• Too high: Add plain ph’d water to the reservoir and test. Repeat until your reservoir reaches a safe fill point, or the ppm is in the correct range. If the ppm is still too high, you can wait for the plant to lower the water levels, or you can change the reservoir water altogether.
• Too low: Do the same as you would if the ppm were too high, but instead, top-off with nutrient-rich water.

Everything You Need to Find Your PPM

HM Digital AP-1 TDS Meter: Cheap, feature-rich, and powerful! I’ve been using this PPM meter for over 4 years and it still works great.

342ppm Calibration solution; for low ppm measurements

1000ppm Calibration solution; for high measurements

The post PPM: What It Is and How To Track It appeared first on Grow Weed Easy.

Here's a series of pictures of a couple marijuana clones I had a few years ago.

I was experimenting with growing an entire plant from clone to harvest in a solo cup, which is why you can see flowering plants in such small containers. Each of these were flowered as soon as the clones took root. This technique is often called "Flowering from seed" or "12-12 from seed" and just means that you force the plant to start flowering at a very young age. I wanted to see how small I could get flowering plants.

Each clone was give the exact same nutrients, conditions, etc. They were green and healthy when I left for a 3-day trip.

Situation: I was leaving for 3 days, and these flowering marijuana clones needed to be watered almost daily since their containers were so small.

In an attempt to give them enough water to last the trip, I over watered them before I left.

When I got back, the plants looked like they had practically died!

Look at how different all of the symptoms were with each of these plants, when the problem was actually the same for all of them:

Same Underlying Problem For Each of These Clones

• Overwatered
• Kept in a grow room that was way too hot (it got up over 100 degrees while I was out of town, and they were kept in these temps for 2-3 days)
• Too small container for their roots (with bigger root mass, marijuana plants are much more resilient to problems)

(remember, these clones were ALL green and healthy before I left, so I feel certain these problems were all caused by the reasons stated above)

Resulting Symptoms Varied Greatly

Clone 1: leaves yellowing and curling up like elf feet, tip burn

Clone 2: curling, rusty brown edges and brown spots

Clone 3: Gets a different type of rusty brown spots

Clone 4: Lime color and curling upwards towards the top of the plant, and yet another type of rusty brown spots and yellowing / curling towards the bottom (looks like a nitrogen deficiency on bottom)

Clone 5: brown spots on top, taco leaves, browning, curling of lower leaves, like a phosphorus deficiency (this is the only clone the appears to have what looked like a phosphorus deficieny in the lower leaves)

Clone 6: rusty outer edges, brown spotting

The truth is, when the marijuana plant's roots are not happy, and when plants get too hot, they freak out!

Often the symptoms may vary quite a bit, even if you have the same underlying problem.

I fixed the problem (controlled heat, and proper watering practices). Symptoms stopped getting worse. Nearly all of them pulled through and made it to harvest.

Jump to…

Learn how to fix cannabis root problems

7-Step Cure to 99% of Marijuana Problems

Marijuana Problems – Picture Guide

Compare Different Grow Lights – Which one will work best for me?

The post Pictures of marijuana symptoms caused by over-watering, too much heat, and small containers appeared first on Grow Weed Easy.

Unfortunately, common cannabis bugs and other garden pests can totally mess up your marijuana harvest.

Caterpillars are one of the most common cannabis pests when growing weed outdoors. Use BT Caterpillar spray (works best if you apply with a mister) as a safe and effective way to eradicate them for good.

This page aims to be a comprehensive resource on the different types of bugs / pests / mold that can affect your marijuana crop, along with tips for preventing and solving each problem.

Pests that can affect your marijuana plants include aphids, fungus gnats, thrips, green flies, black flies, mosaic virus, spider mites, caterpillars, inchworms, whiteflies, white powdery mildew / white powdery mold, stem rot, and even mammals such as deer or cats!

If you want a list of safe, all-natural pesticides that can get rid of most of the pests on this list, check out this page: https://www.growweedeasy.com/safe-cannabis-pesticides

• Aphids
• Barnacles / Scale Insects
• Broad Mites
• Bud Rot or Mold
• Caterpillars & Inchworms
• Crickets
• Fourlined plant bug
• Fungus Gnats
• Grasshoppers
• Leafhoppers
• Leaf Miners
• Leaf Septoria / Yellow Leaf Spot
• Mealybugs
• Planthoppers
• Root Rot
• Russet Mites
• Slugs / Snails
• Spider Mites
• Stink Bugs
• Thrips
• Tobacco Mosaic Virus (TMV)
• Whiteflies / White fly
• White Powdery Mold

It’s time to fight back against cannabis bugs, mold and pests!

Quick Tip! Whenever you spray plants with anything, make sure to get the undersides of the leaves too, as this is where many pests like to hang out! A sprayer / mister is also really helpful for spraying leaves.

Get a mister to evenly spray cannabis plants with an insecticide.

Aphids

Aphids live under leaves and have different forms depending on their stage of life. They are skinny and white when young and fat and plump as adults. Often green, but sometimes other colors like red or black.

Barnacles / Scale Insects

These bugs that look like barnacles and stick to the plant on stems and underneath leaves

Broad Mites

These mites are so small you will likely never see them even under a magnifier. However, you can tell your plant has been infected because your new leaves will be blistered, twisted and glossy. The overall plant will also be growing poorly and if it’s flowering the buds may turn brown. Broad mites are often mistaken for other problems like nutrient deficiencies, heat stress or pH problems.

Bud Rot or Mold

When bud rot strikes, certain buds may start looking sickly overnight, with leaves turning yellow and/or bud becoming discolored. When opened up the inside of the bud is dead or moldy.

Caterpillars, Inchworms & Cabbage Loopers

Caterpillars and worms eat holes in leaves, which is typically the main symptom most growers see.

Caterpillars leave droppings that look like black specks. If you see this, you know you’ve got caterpillars.

Crickets

“Regular” crickets will munch on your leaves while “mole crickets” can tunnel under your plants and disturb their roots!

“Regular” Crickets

Mole Cricket – these can tunnel under your cannabis plants like moles

Fourlined Plant Bugs

This is the cannabis leaf damage from a four-lined plant bug (Poecilocapsus lineatus). You can see the adult version of the bug on the lower left. Both the adults and their nymphs make spots in cannabis leaves that usually appear in clusters.

Fungus Gnats

Fungus gnats look like tiny dark flies. They hang around soil that stays wet for long periods of time, and their worm-like larvae crawl around in the wet top soil. Plants start getting sick if a gnat infestation gets out of control.

Grasshoppers

You’ve probably seen these before, but these seemingly harmless garden creatures will happily eat your cannabis leaves!

Leafhoppers

These bugs come in almost every color and form, but they all cause “leafhopper burn” on your plants if their numbers get out of control.

Leafhopper cannabis damage (“hopper burn”)

Leaf Miners

Leaf miners are larva that actually live inside your leaves and tunnel through them to eat!

Leaf Septoria / Yellow Leaf Spot

This fungus causes round yellow or brown spots, with symptoms often starting on lower parts of the plant

Mealybugs

These tiny white bugs look “hairy” and are found crawling on leaves and buds.

Planthoppers

Each species looks quite a bit different as an adult. Some look like pretty leaves. As youngsters, they create white and fuzzy patches that look like cotton on their butts and on your plants. Planthoppers suck the life out of cannabis plants if they start a colony.

The following are two examples of adult planthoppers (can take many adult forms, though symptoms are the same)

Root Rot

Root rot is a common problem in hydroponic systems though overwatered plants in containers often display similar symptoms. Plants with root rot wilt and leaves may become discolored. In the reservoir the roots turn brown, smelly and slimy.

Russet Mites (or Hemp Russet Mites)

Russet mites are so small you can only see them with a magnifier unless there are thousands of them infesting your plant. They live in the crevices of leaves, stems, or buds.

Slugs / Snails

Slugs and snails usually come out at night, leaving holes in leaves with scalloped edges from their individual bite marks. They also leave slime trails on leaves and on the ground.

Spider Mites

Spider mites are often caught from another cannabis grow room, and their bites leave small white speckles all over your leaves. The bugs are so small they can be hard to see, though the best place to look is underneath leaves.

You may see webbing when enough spider mites are living on the cannabis plant.

Stink Bugs

Various species of stink bug have been known to attack cannabis plants. They lay distinctive patches of white eggs, which hatch into small beetle-like insects and eventually grow into stink bugs.

Thrips

Thrips leave irregular bronze or silver marks that may look like “dried spit” or tiny snail trails. It is also commonly mistaken for a cannabis nutrient deficiency, environmental stress, or other problem.

Young thrips are tiny and look like fat, squirmy worms living on your cannabis leaves.

Tobacco Mosaic Virus

It’s not known whether mosaic virus has jumped from tobacco to cannabis plants, but in this article, I’ll share what I’ve learned so far…

Whiteflies/ White fly

Whiteflies look like tiny white moths and hang out under your cannabis leaves.

White Powdery Mold

WPM leaves a white powdery substance that looks like flour or powder on leaves and stems

Don’t see your bug here? Send us a pic!

Jump to…

Diagnose Your Sick Plant!

7 Steps to Cure 99% of Marijuana Growing Problems

Beginner’s Guide to Growing Weed

How to Improve Your Yields

The post Cannabis Pests, Bugs & Viruses: Picture Guide appeared first on Grow Weed Easy.