Fast-Release Gypsum | Soil Amendment & Turf

Fast-release gypsum products deliver calcium and sulfur rapidly into the soil profile for amendment, turf management, and horticultural applications. Unlike solution grade gypsum, these products are formulated for soil incorporation — not for use in hydroponic solutions or drip systems. Custom Hydro stocks MK Minerals Gypsum Ultra and Verde-Cal G with thCa™ technology.

Key Nutrients

• Calcium (Ca): ~22%
• Sulfur (S): ~17%
• Nitrogen-free — ideal where N inputs must be controlled

Product Options

• MK Minerals Gypsum Ultra — Pelletized calcium sulfate for professional turf and horticulture. Fast-release, easy to spread, low dust
• Verde-Cal G Coarse SGN 185 — Fast-release gypsum with thCa™ organic complexing agent; coarse particle for broadcast application
• Verde-Cal G Fines SGN 85 — Fast-release gypsum with thCa™ organic complexing agent; fine particle for rapid soil incorporation

Applications

• Soil Amendment — Improves soil structure, water infiltration, and calcium availability
• Professional Turf — Corrects calcium and sulfur deficiencies without affecting soil pH
• Horticulture — Supports root development and crop quality in field and greenhouse settings

In Stock & Ready to Ship

Custom Hydro is an authorized U.S. stocking distributor of MK Minerals and Verde-Cal gypsum products — inventory on hand and ships fast.