Jack's 15-0-0 Calcium Nitrate Fertilizer Part B 25 lbs.

Jack’s 15-0-0 Calcium Nitrate Fertilizer – Part B for Professional Hydroponic & Fertigation Programs

Support strong plant growth and prevent calcium deficiencies with Jack’s 15-0-0 Calcium Nitrate Fertilizer – Part B, a professional-grade water-soluble fertilizer designed for use in two-part nutrient programs. This formula supplies essential nitrogen and calcium to help improve plant structure, root strength, and overall crop performance in hydroponic systems, greenhouse production, and commercial growing operations.

Manufactured by JR Peters, Inc., this fertilizer is commonly paired with Part A nutrient formulas in balanced feeding programs used by growers and advanced gardeners.

Key Features

  • 15-0-0 fertilizer with calcium nitrate for strong plant nutrition

  • Designed as Part B in two-part fertilizer systems

  • Provides readily available nitrogen and calcium

  • Helps reduce calcium-related plant disorders

  • Fully water-soluble for hydroponics and fertigation

  • Ideal for greenhouse crops, vegetables, and ornamentals

Benefits for Plant Growth

Jack’s 15-0-0 Calcium Nitrate is used to support:

  • Strong cell wall development

  • Improved root and stem strength

  • Healthy leaf growth and plant structure

  • Reduced risk of issues like blossom end rot and tip burn

  • Balanced nutrient delivery in hydroponic feeding programs

This fertilizer works especially well in controlled growing environments where plants require consistent nutrient availability.

Common Uses

  • Hydroponic growing systems

  • Greenhouse crop production

  • Vegetable crops and fruiting plants

  • Commercial nurseries

  • Fertigation programs in professional agriculture

It is commonly used alongside compatible Part A fertilizers to create a complete nutrient solution for plant growth.

Application Overview

  • Dissolve in water according to the nutrient program or label directions.

  • Use as the Part B component in a two-part fertilizer system.

  • Apply through hydroponic systems, drip irrigation, or fertigation setups.

Always follow the product label and your crop’s feeding schedule for proper mixing ratios and application rates.

Why Growers Choose Jack’s Professional Fertilizers

Jack’s fertilizers are widely trusted by growers for their consistent quality, precise nutrient formulations, and reliable plant performance. The 15-0-0 Calcium Nitrate formula plays an important role in balanced feeding programs, helping plants grow stronger and produce higher-quality crops.




$56.99