How much Fox Farms nutrients do I feed to my marijuana plants? (in soil)

Question: How much Fox Farms nutrients do I feed to my marijuana plants?

Fox Farms Nutrient Trio for SoilSo I have the Fox Farms growing nutrient trio for soil-based plants.

I was wondering how much to feed to my plants which have been in the vegestative stage for about a week now. My plants are in small plant pots for individual plants so I’m not sure how much to use and how.

Do I mix all three nutrients in one container or do I add one at a time?

Answer: In soil, you can usually wait for a few weeks before you need to start feeding nutrients, as high quality soil usually has enough nutrients to get your plants started. If you were growing hydroponically, you’d want to start feeding nutrients almost right away.

If you started with quality soil (not dirt you found outside), you probably won’t need to start adding nutrients until your plants are about a month old. Or you can start right away if the soil was low-quality. When you do start with nutrients, here are some guidelines in soil.

Follow the feeding instructions at half strength, but only add nutrients to water with every 2nd or 3rd watering.

Here’s the instructions for the trio (suggested feeding schedule from the company) in case you didn’t get yours with your nutrients

Like I said, follow the chart they provide except add the nutrients at half strength, and only every 2nd or 3rd watering. This nutrient line is very strong, and too much at once will burn your plants.

Only raise the strength if your plant is a heavy feeder.

For example, if you notice a lot of lower leaves are turning yellow and falling off (before you reach the last couple of weeks before harvest when that’s normal), then it’s a sign that your plant wants more nutrients. At that point, you may consider raising the dose.

Still, treat the official guidelines as a MAX level of nutrients. Never go above the amounts listed in the feeding schedule or you will burn your plants.

Never mix the nutrients together.

Always add nutrients directly to your water.

And even when you’re giving plants plain water, remember to continue managing your pH or you may get nutrient deficiencies from pH lockout.



Jump to…

How do I manage the pH of my marijuana grow?
What marijuana nutrients should I use?
Soil vs Hydroponics
What’s The Fastest Way To Grow Marijuana?




Return to Top of Page