Jack’s Nutrients 15-0-0 Cal-Trate for Hydroponics

This pure blend delivers 18% calcium and 15% nitrate nitrogen, letting growers fine-tune Ca and N without added micros for consistent results and precise EC targets.

Calcium Nitrate Part B Boost — Pairs with 5-12-26 Part A

Use alongside Jack’s 5-12-26 to build a complete, water-soluble two-part feed that mixes clear, resists clogging, and supports strong cell walls, vigorous growth, and heavier yields. Ideal for greenhouses and indoor gardens, the powder dissolves fast for reliable dosing by hand, injector, or recirculating systems.

Key benefits:

Dial-in calcium and nitrate fast. Jack’s® Nutrients 15-0-0 Cal-Trate lets you precisely boost Ca and N to hit your targets for sturdy growth and reliable performance across crop stages.
Build a clean, complete feed. Pair with Jack’s 5-12-26 Part A to create a clear, fully water-soluble two-part that mixes easily, won’t gunk up lines, and stays consistent batch after batch.
Stronger structure, fewer setbacks. Adequate calcium supports firm cell walls and balanced growth, helping you avoid common Ca-related issues in demanding environments.
Works in any setup. Ideal for hydroponics, drip, injectors, and recirculating systems—measure, mix, and go with predictable EC and pH behavior.
Pro, scalable value. The 25 lb bag delivers commercial-grade consistency and cost efficiency, so you can feed more plants with confidence and less waste.

Cal Mag Additives

Jack's® Nutrients 15-0-0 Calcium Nitrate Part B - 25lb BAG (without micronutrients)