Which Cannabis Strain Breeders Can I Trust?

by Nebula Haze

Want the best cannabis genetics? Get seeds from a trusted marijuana breeder so your next grow gets the best germination rates, yields, potency, and density. We recommend 18 cannabis breeders on this page, including Seed Supreme and Ethos Genetics. All breeders were picked based on home grow results with their seeds.

Where is it safe to buy cannabis seeds?

Learn about cannabis breeders from the US and Europe, then get a list of recommended strains with pictures.

Recommended Breeders of American Genetics

• Seed Supreme – They offer a variety of stabilized landrace, legendary, and ultra-trendy strains. One thing I like about them is they have a stable seed catalogue. Very few things in the cannabis world stay consistent over time, but this is one exception. You can order Blue Dream seeds today, then order the same seeds in a few years, and get essentially the same smell, potency, and germination rates as your first order.
• Ethos Genetics – Mostly offers “crosses”, which means they breed two good cannabis plants together and sell the seeds without much stabilization or back-crossing. Even though they don’t offer particularly stable strains and their yields/results are variable, I have always grown good-to-amazing buds from Ethos seeds. For example, I’ve grown Mandarin Cookies seeds multiple times: some plants turned silver/lavender, others turned dark purple, but even when buds are not as expected, they’re always excellent. I included Ethos on the list for people who don’t care as much about consistency and want a fun surprise or like to hunt for new phenotypes using modern genetics with lots of variation. The good news is that lately they have finally started offering stabilized crossing of their most popular strains. For example, they recently released Mandarin Cookies V2, which is a stabilized version of the original.
• Happy Valley – Initially a cannabis dispensary in Massachusetts, the people growing the weed started developing their own strains and winning cannabis cups. Now, Happy Valley Genetics serves their genetics as stabilized seeds to home growers. Their seeds have excellent germination rates and produce beautiful, vibrant plants. I was enthralled by the beautiful purple buds Candy Games #38 made in my last grow (see the grow journal).

The Platinum Cookies seeds I got from Seed Supreme grew amazing buds (see full strain review).

Blue Dream was a joy to grow, with huge yields. Candy Games #38 grew buds that looked legendary (see grow journal).

Your seeds make all the difference to your results!

Recommended European Cannabis Breeders

These breeders have good reputations and stabilized genetics, which means their strain descriptions can be trusted. Although some of them do source some genetics from the USA, they primarily breed with genetics that made it to Europe years ago. Some of these genetics are difficult to find in the US and can offer unique or interesting effects compared to trendy American strains. European strains tend to be lower in THC (under 22%, though not always), which is great if you want more classic effects, but not the best choice if you want to feel overwhelmed by the bud effects. If you’re looking for “Face melting” strains, then I recommend sticking to the section of American breeders.

• Barney’s Farm – Barney’s Farm has been selling seeds out of Amsterdam since 1992, and they regularly develop new genetics and refine their lineup. In my experience, strains can be hit or miss, but I included Barney’s Farm on the list because they offer some real winners. When I’ve grown these strains, I’ve been consistently impressed: Acapulco Gold, Ayahuasca Purple, Cookies Kush, Candy Games #38 (one of my favorite strains for daytime), LSD, Pineapple Chunk (best Pineapple strain) & Sweet Tooth.
• BlimBurn Seeds – Specializes in stabilizing strains to capture classic strains, clone-only strains, and other hard-to-find genetics in seed form
• Bomb Seeds – Sparkly strong buds
• DNA Genetics (they used to breed seeds under the name Reserva Privada)
• Royal Queen Seeds – delightful great-smelling buds

Pineapple Chunk is a quintessential European strain that continues to impress me. I grew it in 2012, then 2015, 2022, and recently again in early 2024. Every time the buds came out even better than the previous time. I personally think this may be Barney Farm’s best strain, and that explains why they keep refining it. This one was grown under a HLG 350W LED grow light and smelled like a mix of citrus with a hint of strawberry. Buds came out dense and sparkly.

Pineapple Chunk always produces easy-to-grow plants and delightful buds.

A different Pineapple Chunk by Barney’s Farm (grown by GG)

Recommended Autoflower Breeders

Auto-flowering strains can’t be effectively cloned and maintained for years like photoperiod strains. As a result, autoflowers require somewhat different breeding protocols vs photoperiod strains. On top of that, old autoflower genetics produce weak plants with low potency buds. Therefore it’s extremely important to use a breeder that’s got a high-quality and current auto-flowering breeding program. Many breeders produce great autoflower strains (Barney’s Farm, etc.), but the following breeders stand out for consistency and potency. Click the name of the breeder to see a list of their currently available auto-flowering strains.

• Bomb Seeds – Sparkly and potent buds
• Buddha Seeds – Feel-good potency, great choice for growers who struggle with anxiety
• DNA Genetics (previously Dinafem/Reserva Privada) – A bit pricey, but they are a great choice if you want to get photoperiod-looking bud quality with auto-flowering strains.
• Dutch Passion – Excellent yields, classic effects
• FastBuds – Fast and potent
• Mephisto (auto-flowering only) – Some of the best auto-flowering strains. Their most popular strain is 3 Bears OG Auto, and they keep improving it.
• Royal Queen Seeds – Buds always come out beautiful (they look just like the pictures) and smell great.
• Seedsman – fast germination, auto-flowering plants grow fast and vigorous
• Sweet Seeds – Spanish genetics with beautiful and colorful strains like Cream Caramel Auto
• Victory Seeds – Dense high-quality buds that look and smell like photoperiod strains

Cinderella Jack Auto by Dutch Passion makes extra-potent, rock-hard buds with above-average yields. This little plant produced several ounces by itself.

Recommended Cannabis Strains 

Now that I’ve given some examples of recommended breeders, I wanted to share some examples of particular strains that my friends and I have grown over the years and recommend. These are all great for beginners unless otherwise noted, and produce excellent buds.

These strain recommendations are based on the following:

• Potency – THC & CBD content, plus does it produce the described effects?

• Bag Appeal – Bud structure, color, density, smell

• Consistency – Do strains grow as the breeder claims? Do characteristics vary a lot from plant to plant of the same strain?

• Ease of growing – General hardiness of strains

• Reputation – Has this breeder earned an excellent reputation over the years?

Girl Scout Cookies

Girl Scout Cookies is a famous clone-only strain from California that has spawned countless copycats and been incorporated into other famous strains like Platinum Cookies. Dedicated growers have captured the magic in seed form so growers can grow Girl Scout Cookies without having to find a clone.

This version of Girl Scout Cookies produces excellent buds. They don’t always turn purple, but cooler night temperatures towards the last 2 weeks of flowering can help bring out purpling.

Purple Ghost Candy

I am a huge fan of Purple Ghost Candy. The bud effects are STRONG, but remind me of the unique psychedelic “day” (uplifting) effects of now-rare outdoor Sativa strains. You never see those old strains anymore because they get huge and need long hot summers in order to produce properly. Purple Ghost Candy gives you access to those bud effects yet is suitable to grow indoors. It still tends to grow tall and stretchy, but as long as you top the plants when they’re small (cut off the tops, which forces the plant to makes many buds instead of one), you can wrangle them indoors.

The right plant here is the 1st time we grew Purple Ghost Candy. As you can see it got a bit tall, which I’ve come to expect, but it was otherwise easy to grow and produced excellent yields. The Critical Kush on the other side was also a good plant, but the Purple Ghost Candy buds won when it came to potency, density, and smell.

Get that fresh “purple” smell (not skunky)

The Purple Ghost Candy plant I just harvested a few weeks ago.

This strain always makes dense, chunky buds!

Dos Si Dos 33

For the fruity sweet lovers, Dos Si Dos 33 smells great and produces beautiful buds.

Example of Dos Si Dos 33 by Barney’s Farm (grown by Max)

Critical Purple Kush

Easy-to-grow, strong but not overwhelming buds (won’t put you to sleep), and huge yields.

Both Critical Purple Kush plants produced a TON of weed (neither turned purple though).

Amnesia

This strain lives up to its name. Amnesia buds are known for making you forget what you were just saying. Not necessarily the best choice for social situations (unless you all just want to chill) but perfect for relaxation at the end of a long day.

Example of an Amnesia plant I grew in a hydroponic setup

Closeup of Amnesia buds. Dense and chunky!

Moby Dick

Moby Dick is a whale of a strain. The bud effects let you swim through life with THC levels that can hit 27%. However, it also has a good amount of CBD (1%),  which means it’s much less likely to trigger a state of panic or anxiety (especially compared to high-THC strains that lack the calming gentle waves of CBD). Smoke a bud and sail through your mental stress into a state of relaxation.

Okay, that’s enough whale jokes, but seriously this is an excellent strain that’s easy to grow and produces high-quality buds. The one downside is it tends to get a bit tall, but as long as you bend and tie down any tall branches, it grows well indoors and rewards you with above-average yields.

Closeup of a Moby Dick bud

Critical Mass CBD Autoflower

Speaking of CBD, some growers would like to maximize the amount of CBD but aren’t looking for a strain with a lot of mind-altering THC. Critical Mass CBD Auto is a great choice and comes in auto-flowering form, which means that it will automatically grow buds and be ready to harvest about 10 weeks from germination. A nice easy strain for someone who’s just getting started.

Example of bud from a Critical Mass CBD Auto

I’ll be adding more details about the recommended strains below soon 🙂

Frisian Dew is a great choice for outdoor growing

Closeup of Frisian Dew bud

Example of a Durban Poison plant that was grown under fluorescent lights. Excellent yield for such low light levels!

A bunch of Master Kush plants

Zweet Inzanity by Ethos Genetics – I love this strain! I’ve grown it multiple times and it always has lovely effects and good yields. Highly recommended.

Peyote Wi-Fi by Seedsman (grown by Prairie Homegrow)

A beefy Northern Lights bud

Example of a small-but-beefy Aurora Indica plant

Example of Bubba Kush plant grown outdoors

Sour Lime Haze by Dirty Bird Genetics

Recommended Auto-Flowering Strains

Auto-flowering plants will make buds and be ready to harvest in 2-3 months from germination (check out the details on the page to see the exact estimate for each strain). Click here to learn more about auto-flowering strains.

Example of a Cinderella Jack Auto plant

Example of a Mazar Auto

Black Cream Auto by Sweet Seeds grown by my friend Santacabrera

Blue Mazar Auto by Dutch Passion

Creme de le Chem Auto by Mephisto Genetics (grown under LEDs)

An assortment of different autoflowering plants from the breeders listed above

Importance of Strain Names

While we’re talking about breeders and strains, I want to talk about an important topic that affects all of us…

Just 50 years ago, cannabis was considered one of the most immoral and destructive drugs in the world, putting it at the top of illegal drug lists in many countries. Many people still live with this attitude.

But in some ways, things have changed.

These days, people are generally more accepting of cannabis, and laws about marijuana are slowly being changed for the better in many places around the world, especially the US.

Because of better attitudes about cannabis around the world, we get…

• Easier access to expert growing information, specialized equipment, and seeds
• Fewer people are getting their lives ruined or going to prison because of a simple plant that’s more harmless than Tylenol
• Medical patients are better able to get strains that offer relief for their specific symptoms
• More people can get safe and reliable access to cannabis

But good things don’t come easily. We still have a long way to go, and the cannabis legalization movement highly scrutinized. The image we create now is going to set the tone for the rest of the world.

We are the face of the cannabis community. When people think about legalizing cannabis, they’re looking at our actions. As growers, every one of us has a responsibility to represent the growing community in a positive light.

Politicians around the world are trying to decide whether removing penalties for cannabis will have a positive effect. We are at a critical turning point, and it could go either way.

We’ve come to an important fork in the road

I believe that making cannabis legal and available to adults and medical patients is incredibly important. Whether someone uses cannabis for a medical condition or just because it helps them relax, I believe that everyone should have fair and equal access to this miraculous plant.

Yet with change comes responsibility. I believe that, as growers, we have a responsibility to present a good image to the public about growing cannabis. We must earn a better reputation to prove to the world that cannabis is not only a safe source of medicine but also that cannabis is less dangerous than cigarettes or alcohol. I believe adults and medical patients deserve the freedom to use this plant responsibly.

The world is watching us, and the way we act now is going to decide  whether cannabis ever gets fully legalized. That’s why I’m ashamed of some of the most popular strain names…

I am ashamed the cannabis growing community has popular strain names like…

• Agent Orange
• Cat Piss
• Strawberry Dog Shit
• Cheesy Dick
• Donkey Dick
• Purple Fuck
• Dirty Girl
• Stinky Pinky
• P*ssy Juice

I know a lot of these strains have great genetics; in fact, some of them are award-winners!

But do these strain names bring to mind the image of peace-loving and laid-back growers and consumers which make up the majority of the cannabis community?

I believe we must improve our public image. I have chosen to no longer grow strains that carry an offensive name. Growers, I encourage you to do the same. Strain breeders, I’m begging you! Please be mindful of the cannabis movement when naming new strains.