Jack's Cal Nit
Best calcium supplement for growers using two-part nutrient feeding systems.
This is the gold standard for growers who demand total control over their nutrient profile. By separating calcium and nitrate, you gain the precision needed for explosive growth, though it requires the extra step of managing a two-part feeding system.
$60.00
at
CapCityHydro (Capital City Organics)
Who it's for
- Serious cultivators using the full Jack's professional nutrient system
- Gardeners growing calcium-hungry fruiting crops like tomatoes
- Growers needing immediate vegetative growth and rapid green-up
Who should skip it
- Beginners seeking a simple, all-in-one fertilizer solution
- Users prone to mixing errors or incompatible nutrient combinations
- Gardeners who prefer a low-maintenance, set-and-forget feeding routine
Performance breakdown
Nutrient Solubility
Dissolves rapidly without leaving behind problematic sediment or residue.
Calcium Bioavailability
Highly refined formula ensures immediate uptake for structural plant health.
System Compatibility
Engineered for seamless integration within professional two-part feeding regimens.
Purity Standards
High-grade synthetic ingredients minimize impurities for consistent crop performance.
Nitrogen Delivery
Nitrate nitrogen provides a quick-release boost for active growth phases.
Handling Convenience
The 25 lb bag is manageable for mid-sized commercial operations.
Key Specs
NPK Ratio
15-0-0
Package Weight
25 lb
Nitrogen Content
15%
Phosphorus Content
0%
Potassium Content
0%
Secondary Nutrient
Calcium
Solubility
Very soluble
Nutrient Type
Calcium Nitrate
Fertilizer Source
Synthetic
Container Weight
25 lb
Know before you buy
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