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by FoxFarm

Price: $59.99 Loading Data
In stock

Boost your plants' growth and overall health with this powerful liquid fertilizer.

Witness rapid, lush, and vibrant growth in your garden with this all-natural formula.

Enhance nutrient uptake and enjoy bigger, healthier plants in record time.

Experience the convenience of an easy-to-use, concentrated liquid that mixes easily with water.

Improve results and yield for hydroponic systems, indoor and outdoor gardens alike.

$59.99 Loading Data

FoxFarm® Grow Big® Hydroponic (3-2-6) is a potent, fast-acting, complete fertilizer specially formulated for use in hydroponic growing systems, encouraging vigorous vegetative growth. Containing earthworm castings and Norwegian kelp, this special brew encourages sturdier, healthier stems and leaves, while also providing enough nutrients and trace minerals to create healthy branching later in the season for more abundant buds and blooms.

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Product details
Product Dimension: 20.32 x 20.32 x 15.24 cm
Shipping Weight: 1.36 Kg
SKU: 1965
Product Barcode:  752289790201

Manufacturer: FoxFarm

Date first available: February 26 2017
Average customer review: 4.6 out of 5 stars 419 customer reviews
Bestsellers Rank: #9 in FoxFarm
Customer reviews

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Julian P. Lazaro


Verified Purchase

December 21, 2020

This is my PSA to all Aerogarden users, just use AeroGarden nutrients unless you know what you are doing. This nutrient is not pH buffered! All of your posts saying this nutrient is great are terribly wrong, you don't realize that when this nutrient is diluted even to ppm of 300 the pH goes down to around 4.0. It's great that somehow your plants survived, but if you plan to use this nutrient or any other hydroponic nutrient, even GH MaxiGro powder, you need a ph kit. GH sells a great little kit with Up/Down and the ph tester kit, you need to keep your pH at 6-7 or your plants are literally scrambling to live.



Verified Purchase

June 10, 2020

Great for growing hydroponics. The concentrated solution seems expensive but it seems to last a long time. I've been using it for crafty hydroponics and I've barely used any. In the process of moving to a much bigger system and planning to stay with this brand because it goes a long way and the plants love it.

I've even been dumping used solution on our roses outside when I loose the occasional plant and our rose bush is taking off with just a couple random waterings (I'm still learning to observe changes in my crafty hydroponic plants before it's too late to save them).

Great product!



Verified Purchase

June 21, 2019

It works great with with my Aerogarden machine to grow herbs . The original Aerogarden plant food is expensive , it leaves brownish residuals on the machine . Hard to clean these residuals . I have tried another two part plant nutrients , it does not stimulate grow as expected. The foxfarm nutrients contains no solid , looks clean . I have harvest herbs twice in 1 month with the help of it . Total satisfied.



Verified Purchase

July 11, 2015

I have used this for about 5 years and I stand by this for having plants that people envy! It produces full healthy plants. Tiger Bloom by this company is the other product I se in conjunction to have beautiful abundant flowers. I joke about calling it my nuclear potion some of my plants just looks so big and gorgeous compared to my sisters plants that received no "potion" :)



Verified Purchase

January 08, 2020

Bought this for an Aerogarden farm XL. Using just the basic dosing instructions the feed produced great results for small heirloom tomatoes and several varieties of peppers. The price per usage is better by far than the Miracle Grow Aerogarden nutrients. Next batch we'll monitor the solution ph better and hopefully have even better results.



Verified Purchase

September 06, 2019

I have been a fan of foxfarm for almost 20 years now. Great product, but you need to make sure you add in micronutrients and additional fertilizers, as recommended on published feeding schedules.
My only issue is that high heat in dwc may cause some matter to settle on the roots and bottom. Not a big deal though.



Verified Purchase

June 08, 2018

Just started with hydroponic growing this year and had limited success with tomatoes/hot peppers. I received this from a friend and everything immediately picked-up. Ordered some immediately. Just be sure to follow the recommended dosage or it'll burn your plants (like any fertilizer). Less is better!

L. Eaton


Verified Purchase

May 03, 2022

I have used Fox Farm hydroponic nutrient in my Aerogardens for several years. I’ve grown lettuce, herbs and now tomatoes and everything thrives. I can’t compare to other brands as this became my go-to when i was looking for a hydroponic nutrient to use other than the expensive Aerogarden nutrient.

Keith Treez


Verified Purchase

July 31, 2016

I've been using the Fox Farms nutrients for about a year now, and man do I love them! They are some of the best nutrients I've ever used for growing hydroponically and indoors. This bottle will last you a long time, unless you're growing lots of plants, then you'll need more than average.

Amy DeFelice


Verified Purchase

February 13, 2017

Excellent product! Grow Big Hydroponic makes it very simple to feed your plants. No matter your experience FoxFarm is reliable and easy. My vegetable plants and even my house plants in water grow healthy and green with strong stems. The roots love these nutrients.

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