Grow Big Liquid Plant Food Concentrate
Best liquid fertilizer for gardeners seeking vigorous vegetative growth.
Foxfarm Grow Big Liquid Plant Food Concentrate is a fast-acting, water-soluble formula designed to boost early-season growth and promote vigorous vegetative development. Enriched with earthworm castings and Norwegian kelp, it encourages stronger stems and healthier leaves, providing essential trace minerals for abundant future buds and blooms. This concentrated solution offers excellent value, ideal for young plants needing an extra boost or for supporting flowering stages. It can be applied as a soil drench or a foliar spray for versatile plant care.
$13.95
Owner Satisfaction
4.6
/ 5
Category Rank
1926
/ 4300
#1926 in Fertilizers
Price vs Category Average
-77%
Below average
Form
Liquid Concentrate
/ Liquid Concentrate
Who it's for
- Gardeners seeking lush, rapid foliage development
- Plant parents prioritizing comprehensive, long-term vitality
- Growers managing diverse soil and hydroponic setups
Who should skip it
- Beginners prone to over-fertilizing delicate seedlings
- Container gardeners wanting to avoid frequent soil flushing
- Budget-conscious growers seeking an all-in-one seasonal solution
Performance breakdown
Vegetative Growth Boost
Rapidly accelerates stem development and foliage density in young plants.
Nutrient Bioavailability
Fast-acting formula ensures plants absorb essential minerals almost immediately.
Application Versatility
Seamlessly transitions between soil drenching and foliar feeding methods.
Ingredient Quality
Premium earthworm castings and kelp provide superior organic nourishment.
Concentration Efficiency
Highly potent liquid requires minimal volume for maximum garden coverage.
Bloom Preparation
Builds the structural foundation necessary for prolific future flowering cycles.
Key Specs
Form
Liquid Concentrate
Package Size
1 Gallon
Solubility
Water soluble
UPC
00752289790300
SKU
182198
Fertilizer Source
Natural
Application Method
Foliar Spray, Soil Drench
Water Soluble
True
Features
- Delivers extra strength grow power
- Fast-acting formula for quick nutrient uptake
- Enriched with earthworm castings and kelp
- Supports sturdy stems and healthy leaves
- Encourages abundant buds and blooms
- Versatile application via soil drench or foliar spray
- Concentrated formula for excellent value
- Contains essential micronutrients
What customers say
Grow Big Liquid Plant Food Concentrate is highly regarded by serious gardeners for promoting rapid, lush vegetative growth in vegetables and houseplants. Customers consistently praise its high nitrogen content and balanced micronutrients, noting visible results quickly. The concentrate offers excellent value and longevity. A key theme is its potency; users emphasize that careful measurement is essential to avoid nutrient burn, especially with sensitive plants. Overall, this product is viewed as a reliable, high performance staple for building strong plant foundations before flowering, provided feeding schedules are respected.
Know before you buy
Yes, Grow Big is suitable for houseplants. Because it is a concentrated formula, be sure to follow the dilution instructions carefully to avoid over-fertilizing your indoor plants.
A soil drench delivers nutrients directly to the root zone for steady uptake, while a foliar spray allows for rapid absorption through the leaves. Foliar application is particularly effective when you need to correct a nutrient deficiency quickly.
Absolutely. Grow Big is formulated to support vigorous vegetative growth, making it an excellent choice for vegetables, flowers, and shrubs during their active growing seasons.
As a quick-release formula, it is designed to provide an immediate nutrient boost. For best results, incorporate it into your regular feeding schedule during the spring and summer months, adjusting frequency based on the specific needs of your plant variety.
FoxFarm Grow Big is enriched with natural ingredients like earthworm castings and Norwegian kelp. It is designed to provide essential trace minerals and nutrients to support plant health naturally.
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$14