Jack's Classic Calcium Nitrate
Best reliable nutrient boost for serious home gardeners.
A specialized, water-soluble supplement designed for hydroponic systems requiring precise nutrient control. It pairs with a companion fertilizer to deliver essential calcium and nitrogen, promoting vigorous leaf growth through a continuous liquid feed program.
$60.70
at
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Who it's for
- Gardeners using automated irrigation or foliar feeding systems
- Vegetable growers preventing blossom end rot in tomatoes and peppers
- Serious hobbyists seeking commercial-quality results in their home gardens
Who should skip it
- Flower enthusiasts prioritizing blooms over lush green foliage
- Homeowners living in humid climates with limited dry storage space
- Beginners looking for a single all-in-one fertilizer solution
Performance breakdown
Solubility Speed
Dissolves rapidly in water without leaving behind stubborn, clogging sediment.
Nutrient Concentration
Highly potent formula minimizes waste and maximizes yield per scoop.
System Compatibility
Engineered specifically to integrate seamlessly with Jack's Part A formulas.
Mixing Precision
Allows growers to fine-tune nutrient ratios for specific crop stages.
Storage Efficiency
Dry powder format saves significant space compared to liquid alternatives.
Hydroponic Suitability
Clean, mineral-based profile prevents nutrient lockout in recirculating water systems.
Key Specs
Analysis
15-0-0
Weight
25 lbs
Form
Powder
Solubility
Water-soluble
Application
Continuous liquid feed
Compatibility
Designed for use with Jack's 5-12-26 Part A
Know before you buy
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