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.
723954 - Emerald Harvest Cal-Mag Gallon/3.8 Liter
723955 - Emerald Harvest Cal-Mag 2.5 Gal/9.46 L
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