{"product_id":"humboldts-secret-calmag-iron-calcium-magnesium-chelated-iron-fertilizer-for-hydroponics-soil-coco-8-oz","title":"Humboldts Secret CalMag \u0026 Iron | Calcium, Magnesium \u0026 Chelated Iron Fertilizer for Hydroponics, Soil, Coco | 8 oz","description":"\u003ch2\u003eBoost plant health with Humboldts Secret CalMag \u0026amp; Iron\u003c\/h2\u003e\n\u003cp\u003eHumboldts Secret CalMag \u0026amp; Iron blends calcium, magnesium, and chelated iron into a balanced nutrient that supports sturdy stems, vibrant leaf color, and steady flowering across a wide range of growing environments. This versatile formula is designed for hydroponics, soil, coco, or RO water, helping your cultivars maintain strong structure and reliable vigor through vegetative and flowering stages.\u003c\/p\u003e\n\u003cp\u003ePackaging updates may appear during our transition, but the formula and performance remain the same. You may receive either previous or updated packaging, with the same trusted nutrients at the core.\u003c\/p\u003e\n\u003ch3\u003eWhat this blend delivers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCalcium and magnesium fortify stems and leaf development for vigorous growth\u003c\/li\u003e\n\u003cli\u003eChelated iron enhances nutrient uptake and enriches leaf color\u003c\/li\u003e\n\u003cli\u003eSupports flowering and fruiting stages for healthier yields\u003c\/li\u003e\n\u003cli\u003eFast-acting recovery from nutrient imbalances and stressed conditions\u003c\/li\u003e\n\u003cli\u003eMaximized absorption helps minerals be utilized efficiently across media\u003c\/li\u003e\n\u003cli\u003eReliable performance in hydroponics, soil, coco, and container gardens\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow it works in your garden\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBalances essential minerals to help prevent common deficiencies and support overall plant health\u003c\/li\u003e\n\u003cli\u003eTargeted nutrient transport and photosynthesis support for steady veg and bloom growth\u003c\/li\u003e\n\u003cli\u003ePromotes root development for stronger establishment in indoor and outdoor setups\u003c\/li\u003e\n\u003cli\u003eAdaptable across coco coir or RO water to assist with challenging conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eHow to use and optimize results: Always follow label directions and start with small, incremental applications. Observe plant response over 1–2 weeks, adjusting as needed for vegetative versus flowering growth. This product complements a complete feeding plan and compatible nutrients.\u003c\/p\u003e\n\u003cp\u003ePackaging Update: You may receive previous or updated packaging during our transition. Same formula, same performance. For best results, store away from extreme heat and direct sunlight.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Which growing media is Humboldts Secret CalMag \u0026amp; Iron compatible with?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It works in soil, coco, hydroponics, or RO water, with a balanced mineral profile for steady nutrition.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What signs indicate a need for CalMag \u0026amp; Iron supplementation?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Look for slower growth, lighter leaf color, or curling leaves; these may suggest nutrient imbalance.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Humboldts Secret","offers":[{"title":"Default Title","offer_id":45832377761978,"sku":"B0DFMXHTRG","price":44.92,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/3536\/8890\/files\/humboldts-secret-calmag-iron-bottle-cap.jpg?v=1778152791","url":"https:\/\/gardencanada.ca\/products\/humboldts-secret-calmag-iron-calcium-magnesium-chelated-iron-fertilizer-for-hydroponics-soil-coco-8-oz","provider":"Garden Canada","version":"1.0","type":"link"}