Grow Big Plant Food
Best liquid fertilizer for gardeners seeking lush, vigorous plant growth.
BFG Supply's Grow Big Plant Food is a liquid concentrate fertilizer engineered to promote robust vegetative growth and enhance plant size and structure. This formulation supports the development of more abundant fruits, flowers, and buds. Its low pH ensures storage stability and keeps essential micronutrients readily available for plant uptake. Suitable for lawns, vegetable gardens, roses, trees, and houseplants, it offers versatile application rates for various plant needs.
$32.00
Owner Satisfaction
4.6
/ 5
Category Rank
1927
/ 4352
#1927 in Fertilizers
Price vs Category Average
-48%
Below average
NPK Ratio
644
/ - -
Who it's for
- Gardeners seeking rapid foliage and stem development
- Plant owners wanting to prevent common nutrient deficiencies
- Busy growers preferring easy-to-mix liquid fertilizers
Who should skip it
- Growers looking for a low-maintenance, set-and-forget feeding routine
- Gardeners wanting a single fertilizer for the entire season
- Beginners prone to over-fertilizing their sensitive plants
Performance breakdown
Vegetative Growth Impact
The balanced NPK ratio drives rapid, lush foliage development across species.
Nutrient Bioavailability
Low pH formulation keeps essential micronutrients accessible for immediate root uptake.
Application Versatility
Easily adapts to foliar, soil drench, or heavy feeding requirements.
Mixing Convenience
Liquid concentrate formula dissolves instantly without messy clumping or residue.
Storage Stability
Acidic base prevents nutrient fallout, ensuring potency remains consistent over time.
Flowering Potential
Supports structural integrity to help plants sustain heavier blooms and fruits.
Key Specs
NPK Ratio
6 - 4 - 4
pH
Low
Fertilizer Form
Liquid Concentrate
Nitrogen Content
6%
Phosphorus Content
4%
Potassium Content
4%
Application Method
General, Heavy, and Foliar feeding
Release Type
Quick Release
Features
- Supports lush vegetative growth
- Enhances plant size and structure
- Promotes abundant fruit and flowers
- Low pH for stable storage
- Liquid concentrate for easy mixing
- Micronutrients remain available
- Quick release formula
What customers say
Gardeners overwhelmingly praise Grow Big Plant Food for its immediate, visible impact on growth, resulting in lush, deep green foliage and strong plant structure. Users value the high concentration, noting that a small amount provides excellent results, justifying the cost and offering strong value for dedicated growers. The formula mixes easily and dissolves well, simplifying the feeding routine. The primary drawback cited is the strong odor, requiring good ventilation. Due to its potency, new users must carefully follow dilution instructions to avoid nutrient burn. Overall, this is viewed as a high performance solution that delivers exceptional results when used correctly, building strong brand loyalty.
Know before you buy
Grow Big has an NPK ratio of 6-4-4. This balanced formula provides a higher nitrogen content to support lush, vegetative growth while still offering enough phosphorus and potassium to encourage healthy flower and fruit development.
Yes, this liquid concentrate is suitable for houseplants. Because it is a quick-release formula, be sure to follow the dilution instructions carefully to avoid over-fertilizing your indoor plants.
The low pH helps keep essential micronutrients in a form that is easily absorbed by your plants. It also ensures the liquid concentrate remains stable and effective while stored in your garden shed or garage.
Absolutely. It is designed to support both vegetative growth and the production of abundant fruits and vegetables. It can be applied through general soil feeding or as a foliar spray depending on your specific garden needs.
You can use this product throughout the active growing season, specifically in the spring, summer, and fall. It is best to avoid application during the winter months when most plants are dormant and not actively taking up nutrients.
General feeding is for standard maintenance, while heavy feeding is for plants that require more nutrients during peak growth stages. Foliar feeding involves spraying the diluted mixture directly onto the leaves for rapid nutrient absorption.
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