--- product_id: 246959388 title: "Peters Excel 15-5-15 Cal-Mag Special w/Black Iron (1) 1 1lb. Bag." brand: "peters" price: "R954" currency: ZAR in_stock: true category: "Peters" url: https://www.desertcart.co.za/products/246959388-peters-excel-15-5-15-cal-mag-special-w-black store_origin: ZA region: South Africa --- # Includes Black Iron for vibrant growth Enhanced with Calcium & Magnesium Balanced 15-5-15 NPK ratio Peters Excel 15-5-15 Cal-Mag Special w/Black Iron (1) 1 1lb. Bag. **Brand:** peters **Price:** R954 **Availability:** ✅ In Stock ## Summary > 🌿 Grow like a pro, bloom like a boss! ## Quick Answers - **What is this?** Peters Excel 15-5-15 Cal-Mag Special w/Black Iron (1) 1 1lb. Bag. by peters - **How much does it cost?** R954 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/246959388-peters-excel-15-5-15-cal-mag-special-w-black) ## Best For - peters enthusiasts ## Why This Product - Trusted peters brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Black Iron Infusion:** Unique black iron component enhances chlorophyll production and deep green foliage. - • **Customizable Application:** Flexible dosing lets you tailor nutrient strength to seasonal plant needs with ease. - • **Cal-Mag Boost for Resilience:** Added calcium and magnesium strengthen cell walls for healthier, more vigorous plants. - • **Precision-Engineered NPK Blend:** Optimized 15-5-15 formula fuels robust plant growth and vibrant blooms. - • **Professional Grade, Convenient Sizes:** Trusted by commercial nurseries, now available in perfectly portioned bags for every scale. ## Overview Peters Excel 15-5-15 Cal-Mag Special w/ Black Iron is a professional-grade fertilizer combining a balanced nitrogen-phosphorus-potassium ratio with essential calcium, magnesium, and micronutrients. Designed for orchids, roses, bromeliads, lilies, and all potted or landscape plants, it promotes strong, healthy growth and vibrant blooms. Available in convenient sizes, it offers customizable application rates to meet seasonal plant demands. ## Description Peters Excel 15-5-15 Cal-Mag Special w/ black Iron is the best fertilizer for your orchids with balanced N & K, low P, added calcium and magnesium along with key micronutrients. Also great for roses, bromeliads, lilies, all potted and landscape plants. GUARANTEED ANALYSIS: Total Nitrogen (N) . . . . 15.0% 1.4% Ammoniacal Nitrogen 11.6% Nitrate Nitrogen 2.0% Urea Nitrogen Available Phosphate (P2O5) . . 5.0% Soluble Potash (K20) . . . . 15.0% Calcium (Ca) . . . . 5.0% Magnesium (Mg) . . . . 2.0% Boron (B) . . . . 0.0187% Copper (Cu) . . . . 0.0187% Iron (Fe) . . . . 0.75% Manganese (Mn) . . . . . 0.0375% Molybdenum (Mo) . . . . 0.0075% Zinc (Zn) . . . . 0.0375% ## Features - Professional formular used by commercial nurseries now available in convenient sizes of 1lb., 3lb., 5lb., & 10lb. - Similar to the “MSU Magic Fertilizer,” with added Calcium and Magnesium to help grow vigorous strong healthy plants. - Provides the vital micronutrients necessary for healthy plant growth to produce vibrant blooms. - Easy to adjust strength based on the seasonal needs of your plants. Application rates included on packaging. - NEW FORMULAR with Black Iron. Re-packaged weekly to convenient sizes. Get just what you need. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08NHVVJGN | | Best Sellers Rank | #88,057 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #1,697 in Garden Fertilizers | | Brand Name | Peters | | Coverage | Medium | | Customer Reviews | 4.7 4.7 out of 5 stars (69) | | Item Form | Granules, Powder | | Item Weight | 16 ounces | | Manufacturer | Everris NA Inc | | Mixing Ratio | 15:5:15 | | Model Number | 848264006525 | | Number of Items | 1 | | Number of Packs | 1 | | Specific Uses For Product | Plant Growth | | Target Species | orchids, roses, bromeliads, lilies, and all potted and landscape plants | | UPC | 848264006525 | | Unit Count | 16 Ounce | ## Product Details - **Brand:** Peters - **Item Form:** Granules, Powder - **Item Weight:** 16 ounces - **Number of Packs:** 1 - **Specific Uses For Product:** Plant Growth ## Images ![Peters Excel 15-5-15 Cal-Mag Special w/Black Iron (1) 1 1lb. Bag. - Image 1](https://m.media-amazon.com/images/I/71D3w2HIGgL.jpg) ![Peters Excel 15-5-15 Cal-Mag Special w/Black Iron (1) 1 1lb. Bag. - Image 2](https://m.media-amazon.com/images/I/51tdTzf6p2L.jpg) ## Available Options This product comes in different **Item Package Quantity** options. ## Frequently Bought Together - Peters Excel 15-5-15 Cal-Mag Special w/Black Iron (1) 1 1lb. Bag. - Peter's 10-30-20. 2 Pounds. Blossom Booster Water Soluble Fertilizer with Micro Nutrients. - SUPERthrive The Original Vitamin Solution - Liquid Concentrate, May Add to Any Fertilizing Program, 4 fl. oz. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.za/products/246959388-peters-excel-15-5-15-cal-mag-special-w-black](https://www.desertcart.co.za/products/246959388-peters-excel-15-5-15-cal-mag-special-w-black) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-09-11*