Jack's Part A
Best soluble nutrient base for growers focused on vigorous vegetative development.
This is the gold standard for growers who demand total control over their vegetative feeding schedules. By prioritizing pure solubility, it eliminates the guesswork of nutrient uptake, though it requires a bit more technical oversight than a simple, all-in-one liquid solution.
$96.75
at
CapCityHydro (Capital City Organics)
Who it's for
- Budget-conscious cultivators prioritizing cost-effective nutrient solutions
- Commercial growers seeking maximum flower and fruit yields
- Hydroponic gardeners needing clog-free irrigation systems
Who should skip it
- Beginners wanting a simple, all-in-one fertilizer solution
- Gardeners who prefer the convenience of pre-mixed liquids
- Novice growers struggling with precise pH and EC management
Performance breakdown
Nutrient Solubility
Fully dissolves in water to prevent clogged irrigation lines and emitters.
Feeding Versatility
Highly adaptable formula suits diverse crop types and varied growing environments.
Vegetative Support
Potent NPK ratio drives robust leaf and stem development during growth.
Application Efficiency
Quick-release minerals provide immediate nutrient uptake for hungry, fast-growing plants.
Formula Precision
Professional-grade mineral blend ensures consistent results across every feeding cycle.
Storage Convenience
Large 25-pound bag offers great value but requires dedicated dry storage.
Key Specs
NPK Ratio
5-12-26
Package Weight
25 lb.
Nitrogen Content
5%
Phosphorus Content
12%
Potassium Content
26%
Nutrient Availability
Purely soluble and available
Fertilizer Form
Granular
Fertilizer Source
Mineral Based
Container Weight
25.0 pounds
Water Soluble
true
Know before you buy
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Ask Metto anything about the Jack's Part A before you decide.
