---
product_id: 12789602
title: "Grow Big Liquid Plant Food - 6-4-4 House Plant Fertilizer for Lush Vegetative Growth, Fast Nutrient Uptake for Roses, Tomatoes & Veggies - 2.5 Gallon Size Concentrate"
brand: "foxfarm"
price: "€ 738.32"
currency: EUR
in_stock: true
reviews_count: 13
category: "Fox Farm"
url: https://www.desertcart.hr/products/12789602-grow-big-liquid-plant-food-6-4-4-house-plant
store_origin: HR
region: Croatia
---

# Fast nutrient absorption 6-4-4 NPK for lush growth 2.5 gallons concentrated formula Grow Big Liquid Plant Food - 6-4-4 House Plant Fertilizer for Lush Vegetative Growth, Fast Nutrient Uptake for Roses, Tomatoes & Veggies - 2.5 Gallon Size Concentrate

**Brand:** foxfarm
**Price:** € 738.32
**Availability:** ✅ In Stock

## Summary

> 🌿 Grow Big, Grow Bold — Your plants’ VIP pass to lush, unstoppable growth!

## Quick Answers

- **What is this?** Grow Big Liquid Plant Food - 6-4-4 House Plant Fertilizer for Lush Vegetative Growth, Fast Nutrient Uptake for Roses, Tomatoes & Veggies - 2.5 Gallon Size Concentrate by foxfarm
- **How much does it cost?** € 738.32 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/12789602-grow-big-liquid-plant-food-6-4-4-house-plant)

## Best For

- foxfarm enthusiasts

## Why This Product

- Trusted foxfarm brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Rapid Nutrient Uptake:** Engineered for instant absorption to fuel your plants’ peak performance.
- • **Stable & Ready-to-Use:** Low pH formula ensures micronutrients stay bioavailable and effective over time.
- • **Effortless Application:** Supports both foliar feeding and watering methods for flexible, hassle-free use.
- • **Versatile Plant Booster:** Perfectly tailored for roses, tomatoes, veggies, and more—indoor or outdoor.
- • **Power-Packed 6-4-4 Formula:** Optimized nutrient blend for vigorous vegetative growth and abundant blooms.

## Overview

FoxFarm Grow Big Liquid Plant Food is a 2.5-gallon concentrated fertilizer with a balanced 6-4-4 NPK ratio designed for fast nutrient uptake and sustained vegetative growth. Ideal for a wide range of plants including roses, tomatoes, and vegetables, it supports both indoor and outdoor gardening with easy application methods and a stable, low pH formula that keeps nutrients readily available.

## Description

desertcart.com : FoxFarm Grow Big Liquid Plant Food - 6-4-4 House Plant Fertilizer for Lush Vegetative Growth, Fast Nutrient Uptake for Roses, Tomatoes & Veggies - 2.5 Gallon Size Concentrate : Fertilizers : Patio, Lawn & Garden

Review: How have I only JUST reviewed this? It's my secret weapon! - How have I only JUST reviewed this? This is basically my secret weapon. I’m half convinced it’s magic in a bottle because everything I use it on suddenly decides to thrive. Plants that were barely hanging on? Revived. New plants? Thriving like they pay rent. It works on everything—indoor plants, outdoor plants, the “I forgot about this in the corner” plants. Foolproof is not an exaggeration. I don’t even try that hard anymore, and somehow I look like I know what I’m doing. I don’t fully understand what’s in it, but whatever the formula is, it’s clearly high quality and actually does what it promises. It mixes easily, no weird smell, no complicated steps—just simple and effective. If you want lush, green, “wow what are you using?” kind of plants without becoming a full-time gardener, this is it. Secretly I think that this is the reason why I didn't review this before - heh.
Review: Works great. I'll never use Miracle grow again - Excellent product, everything in the garden is thriving

## Features

- WATCH YOUR PLANTS FLOURISH: This plant food for vegetables is designed to support growth. Enhance plant size and structure, promoting abundant fruit, flower, and bud development
- INSTANT NUTRIENT ABSORPTION: Formulated for quick nutrient uptake, this liquid vegetable fertilizer helps plants absorb essential nutrients faster. Whether your plants are newly sprouted or established, they’ll get the nourishment they need
- PERFECT FOR A VARIETY OF PLANTS: Ideal for roses, tomatoes, and veggies, this liquid fertilizer caters to a wide range of plants. Its versatile formula is great for both indoor and outdoor plants
- SUSTAINED NUTRIENT DELIVERY: The liquid fertilizer’s low pH maintains stability during storage and ensures micronutrients stay readily available.
- FEED YOUR PLANTS THE EASY WAY: Apply our plant liquid fertilizer easily with foliar feeding or regular watering. Whether you're giving plants a jump start or supporting their peak growth, simply follow the feeding schedule for best results

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002JLCCPO |
| Application Method | watering, foliar feeding |
| Best Sellers Rank | #2,607 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #75 in Garden Fertilizers |
| Brand | FoxFarm |
| Brand Name | FoxFarm |
| Coverage | Full |
| Customer Reviews | 4.8 out of 5 stars 7,784 Reviews |
| Global Trade Identification Number | 00752289790317 |
| Included Components | Bottle |
| Item Form | Liquid |
| Item Type Name | Hydroponic Liquid nutrients |
| Item Weight | 27.9 pounds |
| Liquid Volume | 320 fluid ounces |
| Manufacturer | FoxFarm |
| Mixing Ratio | 3:2:6 |
| Model Number | FX14008 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | FX14008 |
| Specific Uses For Product | Hydroponic |
| Target Species | roses, tomatoes, veggies, flowers, fruits, herbs and lawns |
| UPC | 752289790317 |
| Unit Count | 320 Fluid Ounces |
| Warranty Description | 1-year warranty |

## Product Details

- **Brand:** FoxFarm
- **Item Form:** Liquid
- **Item Weight:** 27.9 pounds
- **Liquid Volume:** 2.5 gallons
- **Specific Uses For Product:** Hydroponic

## Images

![Grow Big Liquid Plant Food - 6-4-4 House Plant Fertilizer for Lush Vegetative Growth, Fast Nutrient Uptake for Roses, Tomatoes & Veggies - 2.5 Gallon Size Concentrate - Image 1](https://m.media-amazon.com/images/I/71XMgMl+pjL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: What are the ingredients?**
A: A brew of Earthworm castings , kelp and other nutrients.  All natural.  It’s awesome for tomatoes and other vegetables.  Don’t forget the Super Bloom as well.

**Q: When do i start using grow big, in what plant stage. Some say two weeks after germination,some say a month(canab.plants)?**
A: FoxFarm recommends you start using Grow Big two to three weeks into veg and follow thru to about three weeks into flower. Go onto their website, they have some good feeding schedules that illustrate this. Good luck

**Q: you say this is organic based. what does this mean? Is it organic or not**
A: This is not a certified organic nutrient. Only their big bloom is omri listed

**Q: is the liquid clear**
A: The liquid is green you can see threw

## Customer Reviews

### ⭐⭐⭐⭐⭐ How have I only JUST reviewed this? It's my secret weapon!
*by M***S on July 2, 2026*

How have I only JUST reviewed this? This is basically my secret weapon. I’m half convinced it’s magic in a bottle because everything I use it on suddenly decides to thrive. Plants that were barely hanging on? Revived. New plants? Thriving like they pay rent. It works on everything—indoor plants, outdoor plants, the “I forgot about this in the corner” plants. Foolproof is not an exaggeration. I don’t even try that hard anymore, and somehow I look like I know what I’m doing. I don’t fully understand what’s in it, but whatever the formula is, it’s clearly high quality and actually does what it promises. It mixes easily, no weird smell, no complicated steps—just simple and effective. If you want lush, green, “wow what are you using?” kind of plants without becoming a full-time gardener, this is it. Secretly I think that this is the reason why I didn't review this before - heh.

### ⭐⭐⭐⭐⭐ Works great. I'll never use Miracle grow again
*by D***. on September 17, 2026*

Excellent product, everything in the garden is thriving

### ⭐⭐⭐⭐⭐ Amazing product!
*by S***L on June 27, 2017*

I was a little skeptical as to whether or not this liquid feed concentrate would actually work on my vegetable garden. I've used many, many different natural products to help give my plants an extra boost at the beginning of the gardening season as well as throughout each stage in the plants life up to fall time. The 2017 Ohio Spring got off to a horrible start this year. In March we were teased with well above average temperatures and it seemed as if we were going to have a great start to the gardening season. I start all of my plants from seed in a grow tent in my basement in February, so in April when the temperatures were still warm and my 150+ plants could no longer fit inside, I moved everything to an outdoor pop up green house with shelves and a thick plastic covering. Unfortunately about a week later, the temperatures plummeted and I had way too many plants in large pots to try and bring inside. I was under the impression that my baby plants were being well enough protected inside of their zipped up greenhouse during the cold 40 degree nights, but I was completely wrong. The temperatures hovered in the low 50’s and 60’s for the majority of April. At this point, I had already put my way over grown pumpkins in the ground at the end of April and tried to shield them using row covers. I knew the tomatoes and peppers wouldn’t survive the chilly temperatures so I did what I could to protect them. By May 15th, the temperatures had recovered into the mid 70’s and I felt confident enough to plant the tomatoes and peppers in the ground. Not even 4 days went by and our weather went down the drain again with lots of rain, and chilly temperatures falling into the low 50’s. I was praying that my plants would survive, but it was clear by the end of May that they were stunted. My tomatoes were PURPLE and the peppers were a horrific Kelly green. I bought the Fox Farms Liquid Feed in hopes of giving them a boost and mixed in some Epsom salts for good measure. I’ve been using this product for about 4 weeks, applying it to the base of each plant once per week, and I cannot even begin to describe the complete turn-around my garden has done. It gave my plants the nutrients and boost they needed to get out of their “funk” and helped them grow strong healthy root systems. My tomato plants are loaded with blooms and baby tomatoes, the pepper plants are all producing fruit, and my pumpkins/squash/melons are all producing fruit and new growth! I am definitely a believer of this company! The photos attached to this review were taken 22 days apart!

## Frequently Bought Together

- FoxFarm Grow Big Liquid Plant Food - Bloom Fertilizer for Flowers, Fruits, and Vegetables, Perfect for Indoor & Outdoor Potted Plants, NPK 6-4-4 (2.5 Gallons)
- FoxFarm - Big Bloom Plant Food, Liquid Fertilizer Concentrate for Flowers, Fruits, and Vegetables, All Purpose Plant Fertilizer for Indoor & Outdoor Potted Plants, NPK 0.01-0.03-0.7 (2.5 Gallon)
- FoxFarm Tiger Bloom Liquid Fertilizer Concentrate - Fast Acting Formula for Vicious Growth with Phosphorus - Encourages Fruit, Flower & Bud Development, NPK 2-8-4 (Gallon)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-10-15*