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![House & Garden Commercial CalMag, 25 lbs Pail House & Garden Commercial CalMag, 25 lbs Pail](https://cdn11.bigcommerce.com/s-9yr6xypdj9/images/stencil/300w/products/243913/404697/HGCOMCM25LB_1__22900.1720209580.jpg?c=2)
House & Garden Commercial CalMag
House & Garden Commercial CalMag is a readily available calcium/magnesium fertilizer designed to encourage rapid growth and reduce problems associated with calcium and magnesium deficiencies. Commercial CalMag is designed to be used with House & Garden Commercial grow throughout the vegetative phase, and it should be used with House & Garden Commercial Bloom during the flowering phase. Recipe charts are available online at https://house-garden.us/.
House & Garden Commercial CalMag can also be used as a supplement with other nutrient regimens and is highly recommended for use with reverse osmosis water and when growing plants in coco coir.