Keep your plants productive and green with Cal-Mag, a calcium and magnesium supplement from Emerald Harvest®. Containing top-quality ingredients, Cal-Mag is designed to nourish crops with extra calcium and magnesium and create the right conditions for abundant flowering and a heavy yield. This is especially important when growing in some media, such as coco coir, but any garden can benefit. Use Cal-Mag as a supplement to a base nutrient series for guaranteed professional results.

Emerald Harvest Cal Mag

Available Sizes

    United States: 1 (631) 561-1661 - Trinidad & Tobago: 1 (868) 337-5480

    Po Box 4231 East Hampton New York 11937