Jacks Prof All Purpose LX 21-5-20 25Lb HAZ — Single Unit

Jack's Professional® 21-5-20 All Purpose LX Fertilizer is a complete formula designed for crops irrigated with moderate- to high-alkalinity water. It keeps magnesium and phosphorus soluble in concentrated stock solutions, providing flexibility when adjusting fertility programs. The formula supports balanced plant growth and can be tank mixed with Jack's Professional® 15-5-15 Cal-Mag LX, other compatible LX formulas, calcium nitrate, or magnesium nitrate.