{"product_id":"emerald-harvest-cal-mag-supplement-calcium-magnesium-plant-nutrient","title":"Emerald Harvest Cal-Mag Supplement | Calcium \u0026 Magnesium Plant Nutrient","description":"\u003ch3\u003eEmerald Harvest Cal-Mag Calcium Magnesium Supplement\u003c\/h3\u003e\n\u003cp\u003ePrevent the deficiencies that silently cost you quality before you ever see a symptom. Emerald Harvest Cal-Mag delivers a targeted calcium and magnesium supplement enriched with kelp extract the exact formulation designed to keep coco coir and hydroponic gardens green, vigorous, and producing at full capacity through every stage of the grow cycle.\u003c\/p\u003e\n\u003cp\u003eCalcium drives cell wall integrity and nutrient transport; magnesium anchors chlorophyll molecules and powers photosynthesis. When either is deficient a common occurrence in coco coir and RO water systems the entire nutrient program underperforms. Cal-Mag closes that gap proactively, ensuring your investment in premium nutrients is never limited by elemental deficiency.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCalcium Deficiency Prevention\u003c\/strong\u003e - Supplemental calcium prevents blossom end rot, tip burn, and cell wall collapse particularly critical in coco coir and soft water systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMagnesium for Chlorophyll Integrity\u003c\/strong\u003e - Magnesium anchors the chlorophyll molecule, supporting photosynthetic efficiency and preventing the interveinal yellowing that signals deficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKelp Extract Enhancement\u003c\/strong\u003e - Natural kelp extract provides growth-stimulating compounds that support root development and overall plant vigor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoco \u0026amp; RO Water Optimized\u003c\/strong\u003e - Specifically formulated for growing media and water sources that strip available calcium and magnesium from the root zone.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNPK 2-0-0\u003c\/strong\u003e - Minimal nitrogen contribution integrates without disrupting existing macro ratios.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Global Garden","offers":[{"title":"1 Quart","offer_id":56300281987238,"sku":"GG-631016","price":15.0,"currency_code":"USD","in_stock":true},{"title":"1 Gallon","offer_id":56300282020006,"sku":"GG-631018","price":46.0,"currency_code":"USD","in_stock":true},{"title":"2.5 Gallon","offer_id":56300282052774,"sku":"GG-631020","price":84.0,"currency_code":"USD","in_stock":true},{"title":"6 Gallon","offer_id":56300282085542,"sku":"GG-631022","price":153.0,"currency_code":"USD","in_stock":true},{"title":"Default Title","offer_id":56300282118310,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0731\/6344\/0294\/files\/group-cal-mag.jpg?v=1773712480","url":"https:\/\/gridfreesupply.com\/products\/emerald-harvest-cal-mag-supplement-calcium-magnesium-plant-nutrient","provider":"Grid Free Supply","version":"1.0","type":"link"}