Jack's® Nutrients 5-12-26 Part A Fertilizer — 25 lb

Give your greenhouse crops the precise nutrition they need to thrive. Jack's® 5-12-26 Part A is a professional-grade, fully water-soluble fertilizer engineered for maximum nutrient uptake in controlled environment agriculture. Whether you're running a commercial greenhouse or a high-tech grow room, this formula delivers the macro, secondary, and micronutrients your crops demand — every feed, every time.

Why Growers Choose Jack's® 5-12-26 Part A

• Promotes vigorous leaf growth and strong root development — ideal for establishing healthy plant structure from the start
• 100% water-soluble — dissolves completely with no residue, keeping your irrigation lines and emitters clean
• Balanced macro, secondary & micronutrient profile — designed to work in tandem with Part B for a complete two-part feed program
• Maximum grower flexibility — compatible with a wide range of crop types and growing environments
• Trusted by professional growers — backed by J.R. Peters' decades of horticultural expertise

Ideal For

• Greenhouse and controlled environment crops
• Hydroponic and soilless growing systems
• Commercial floriculture and vegetable production

Product Details

• NPK Ratio: 5-12-26
• Net Weight: 25 lb
• Form: Water-soluble powder
• Brand: Jack's® Nutrients by J.R. Peters

For best results, use as Part A in the Jack's® two-part nutrient program alongside Jack's® Part B Calcium Nitrate.