--- product_id: 358864916 title: "Botanicare Cal-Mag Plus, A Calcium, Magnesium, and Iron Plant Supplement, Corrects Common Plant Deficiencies, Add to Water or Use as a Spray, 2-0-0 NPK, 1-Gallon" brand: "botanicare" price: "$296.51" currency: USD in_stock: true category: "Botanicare" url: https://www.desertcart.us/products/358864916-botanicare-cal-mag-plus-a-calcium-magnesium-and-iron-plant store_origin: US region: United States of America --- # Calcium, Magnesium & Iron boost Versatile liquid for soil & foliar use 2-0-0 NPK formula Botanicare Cal-Mag Plus, A Calcium, Magnesium, and Iron Plant Supplement, Corrects Common Plant Deficiencies, Add to Water or Use as a Spray, 2-0-0 NPK, 1-Gallon **Brand:** botanicare **Price:** $296.51 **Availability:** βœ… In Stock ## Summary > 🌱 Elevate your plants from basic to botanical brilliance! ## Quick Answers - **What is this?** Botanicare Cal-Mag Plus, A Calcium, Magnesium, and Iron Plant Supplement, Corrects Common Plant Deficiencies, Add to Water or Use as a Spray, 2-0-0 NPK, 1-Gallon by botanicare - **How much does it cost?** $296.51 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/358864916-botanicare-cal-mag-plus-a-calcium-magnesium-and-iron-plant) ## Best For - botanicare enthusiasts ## Why This Product - Trusted botanicare brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Precision Dosing:** Easy 5 ml per liter mixing ratio ensures consistent, hassle-free feeding - β€’ **Fortify Your Growth:** Highly fortified with essential Ca, Mg & Fe to correct common plant deficiencies - β€’ **Flexible Application:** Use as a foliar spray or mix with every watering for maximum nutrient uptake - β€’ **Trusted by Thousands:** 4.7-star rating from over 2,500 plant pros who swear by it - β€’ **Universal Compatibility:** Perfect for soil, coco coir, containers, and hydro gardens alike ## Overview Botanicare Cal-Mag Plus is a premium liquid supplement delivering a precise 2-0-0 NPK blend enriched with calcium, magnesium, and iron. Designed to correct common nutrient deficiencies, it supports robust plant growth across soil, coco, and hydroponic systems. Trusted by thousands with a 4.7-star rating, it offers flexible application as a foliar spray or soil additive, making it an essential upgrade for any serious grower’s nutrient regimen. ## Description Supplement your existing nutrient programs in reverse osmosis water, or when growing in soil or coco coir-based media, to compensate for a natural calcium draw with Botanicare Cal-Mag Plus. Formulated to correct common deficiencies, Botanicare Cal-Mag Plus is a highly fortified calcium, magnesium, and iron plant supplement. It contains a 2-0-0 NPK and can be mixed in with regular waterings or applied as a foliar spray to further enhance growth. ## Features - Highly fortified calcium, magnesium, and iron plant supplement formulated to correct common deficiencies - Supplement your existing nutrient program with Cal-Mag Plus - To Use: Mix well and use with every watering, as needed, for enhanced growth apply as a foliar spray - For use in containers, coco, hydrogardens, and when growing in soil - Contains formulation of 2-0-0 NPK ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000J2CUPW | | Brand Name | Botanicare | | Coverage | Full | | Customer Reviews | 4.8 4.8 out of 5 stars (2,597) | | Global Trade Identification Number | 00757900241285 | | Included Components | Bottle with liquid supplement | | Item Form | Liquid | | Item Type Name | Calcium Magnesium & Iron Plant Supplement | | Item Weight | 10.3 Pounds | | Liquid Volume | 3.78 Liters | | Manufacturer | Hawthorne Hydroponics, LLC | | Mixing Ratio | 5 ml/L | | Model Number | BCCMGAL | | Number of Items | 1 | | Part Number | 732115 | | Specific Uses For Product | Plant Growth | | Target Species | plants | | UPC | 714639490223 791090262002 783942912234 757900241285 765018456736 309277145590 702872551191 | | Unit Count | 128 Milliliters | ## Product Details - **Brand:** Botanicare - **Item form:** Liquid - **Item weight:** 4.67 kg - **Liquid volume:** 3.78 Liters - **Specific uses for product:** Plant Growth ## Images ![Botanicare Cal-Mag Plus, A Calcium, Magnesium, and Iron Plant Supplement, Corrects Common Plant Deficiencies, Add to Water or Use as a Spray, 2-0-0 NPK, 1-Gallon - Image 1](https://m.media-amazon.com/images/I/61Mb3u-UExL.jpg) ![Botanicare Cal-Mag Plus, A Calcium, Magnesium, and Iron Plant Supplement, Corrects Common Plant Deficiencies, Add to Water or Use as a Spray, 2-0-0 NPK, 1-Gallon - Image 2](https://m.media-amazon.com/images/I/61F1mb-LXOL.jpg) ![Botanicare Cal-Mag Plus, A Calcium, Magnesium, and Iron Plant Supplement, Corrects Common Plant Deficiencies, Add to Water or Use as a Spray, 2-0-0 NPK, 1-Gallon - Image 3](https://m.media-amazon.com/images/I/61O7MzBNS+L.jpg) ![Botanicare Cal-Mag Plus, A Calcium, Magnesium, and Iron Plant Supplement, Corrects Common Plant Deficiencies, Add to Water or Use as a Spray, 2-0-0 NPK, 1-Gallon - Image 4](https://m.media-amazon.com/images/I/61EOEraMaIL.jpg) ![Botanicare Cal-Mag Plus, A Calcium, Magnesium, and Iron Plant Supplement, Corrects Common Plant Deficiencies, Add to Water or Use as a Spray, 2-0-0 NPK, 1-Gallon - Image 5](https://m.media-amazon.com/images/I/71EtwjeHHmL.jpg) ## Questions & Answers **Q: How much will this make?** A: Mixed at 3ml per gallon it will make 320 gallons. Mixed at 5ml per gallon it will make 192 gallons. **Q: Is this carbonate based?** A: Near neutral pH, ferric ions form insoluble solids and are thus not bioavailable. EDTA (and other chelating agents) address this problem, by forming soluble complexes that resist formation of hydroxides. EDTA increases the bioavailability and plant uptake of the metals in the soil **Q: How long can this be kept and or stored** A: Product warranty on nutrients and supplements is 1 year past the date of manufacture. Stable shelf life can run past this substantially if unopened, but this time greatly depends on storage conditions. Once a product is opened, it should be used within 6 months, or ideally- the time it takes to cycle a production garden which is typically 12 weeks on average. Opened products may last longer than this, but it should not be expected to be the case. **Q: Can this be used for Tomatoes, Blossom end rot?** A: Yes, this works well with Tomatoes. ## Frequently Bought Together - Botanicare Cal-Mag Plus, A Calcium, Magnesium, and Iron Plant Supplement, Corrects Common Plant Deficiencies, Add to Water or Use as a Spray, 2-0-0 NPK, 1-Gallon - FoxFarm FX14091 Big Bloom Liquid Concentrate Fertilizer, 1-Pint, White - Boveda 62% Two-Way Humidity Control Packs For Storing 1 oz – Size 8 – 10 Pack – Moisture Absorbers for Small Storage Containers – Humidifier Packs – Hydration Packets in Resealable Bag --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/358864916-botanicare-cal-mag-plus-a-calcium-magnesium-and-iron-plant](https://www.desertcart.us/products/358864916-botanicare-cal-mag-plus-a-calcium-magnesium-and-iron-plant) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-19*