Foxfarm Grow Big Pt
Best liquid fertilizer for gardeners seeking rapid, lush vegetative plant growth.
Fuel lush, vigorous vegetative growth with Foxfarm Grow Big Liquid Plant Food. This pint-sized concentrate, featuring a 6-4-4 NPK ratio, ensures immediate nutrient uptake for fast, visible results on roses, houseplants, tomatoes, and vegetables. Enhanced with earthworm castings and kelp, it significantly boosts plant size and structure, promoting abundant fruit and flower development. Essential micronutrients are included to support robust plant health throughout the growing season.
$15.16
Owner Satisfaction
4.7
/ 5
Category Rank
50
/ 4300
#50 in Fertilizers
Price vs Category Average
-75%
Below average
NPK Ratio
644
/ --
Who it's for
- Growers using the FoxFarm system for consistent, easy feeding
- Gardeners seeking fast, lush foliage and stem development
- Plant owners prioritizing long-term health and natural resilience
Who should skip it
- Casual gardeners wanting a low-maintenance, shelf-stable fertilizer
- Beginners prone to overfeeding sensitive plant varieties
- Budget-conscious growers avoiding complex multi-bottle feeding regimens
Performance breakdown
Vegetative Growth Speed
The 6-4-4 ratio triggers rapid, visible foliage development almost immediately.
Nutrient Bioavailability
Liquid concentrate formula ensures plants absorb essential minerals without delay.
Ingredient Quality
Earthworm castings and kelp provide a nutrient-dense, organic foundation for growth.
Application Versatility
Works seamlessly across diverse plant types from delicate houseplants to vegetables.
Ease of Mixing
Water-soluble liquid concentrate simplifies the preparation process for regular feeding.
Structural Support
Micronutrients effectively strengthen stems and branches for better overall plant architecture.
Key Specs
NPK Ratio
6-4-4
Package Size
1 Pint
Form
Liquid Concentrate
Nitrogen Content
6%
Phosphorus Content
4%
Potassium Content
4%
Nutrient Focus
Vegetative Growth
Fertilizer Source
Organic
Features
- Promotes vigorous vegetative growth
- Ensures immediate nutrient uptake
- Enhances plant size and structure
- Supports abundant fruit and flower development
- Enriched with earthworm castings and kelp
- Contains essential micronutrients
- Fast nutrient absorption capability
- Designed for quick release feeding
What customers say
Grow Big is overwhelmingly viewed as a highly effective and reliable nutrient solution. The core sentiment centers on its consistent ability to deliver rapid, visible growth and lush foliage, making it a staple for all grower levels. Users value the clear instructions and simple application process, noting that a small amount yields significant results. This fertilizer consistently meets high expectations for quality and performance, establishing itself as a trusted choice for maximizing plant health and offering excellent value.
Know before you buy
Grow Big is specifically formulated to fuel vigorous vegetative growth. Its 6-4-4 NPK ratio makes it ideal for building strong plant structure and size before plants transition into their flowering or fruiting stages.
Yes, Grow Big is suitable for houseplants, as well as roses, vegetables, and lawns. Because it is a liquid concentrate, it is easy to dilute and apply to container-grown plants.
This formula is designed for quick-release feeding and immediate nutrient uptake. You can expect to see visible results in plant health and growth speed shortly after application.
Yes, the formula is enriched with organic components including earthworm castings and kelp. These ingredients provide essential micronutrients that support overall plant health throughout the growing season.
Grow Big is best used during the vegetative stage to build size and structure. Once your plants begin to show signs of flowering or fruiting, you may want to switch to a fertilizer with a higher phosphorus content to better support those specific developmental needs.
Yes, it is a fully water-soluble liquid concentrate. It mixes easily with water, ensuring that the nutrients are readily available for your plants to absorb through their roots.
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