---
product_id: 246959388
title: "Peters Excel 15-5-15 Cal-Mag Special w/Black Iron (1) 1 1lb. Bag."
brand: "peters"
price: "27790CFA"
currency: XOF
in_stock: true
reviews_count: 8
category: "Peters"
url: https://www.desertcart.sn/products/246959388-peters-excel-15-5-15-cal-mag-special-w-black
store_origin: SN
region: Senegal
---

# 5% Calcium & 2% Magnesium boost vigor 15% Total Nitrogen for lush growth 0.75% Black Iron for deep green foliage Peters Excel 15-5-15 Cal-Mag Special w/Black Iron (1) 1 1lb. Bag.

**Brand:** peters
**Price:** 27790CFA
**Availability:** ✅ In Stock

## Summary

> 🌱 Elevate your garden game with the pro’s secret weapon!

## 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?** 27790CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/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 Boost:** Unique black iron infusion enhances chlorophyll production for richer greens.
- • **Cal-Mag Powerhouse:** Added Calcium & Magnesium ensure stronger, healthier plants that stand out.
- • **Customizable Strength:** Easily adjust application rates seasonally for optimal plant performance.
- • **Precision-Engineered Nutrient Blend:** Balanced 15-5-15 NPK formula fuels vibrant blooms and robust roots.
- • **Professional Grade, Convenient Sizes:** Trusted by commercial nurseries, now in perfectly portioned bags for your home garden.

## Overview

Peters Excel 15-5-15 Cal-Mag Special w/ Black Iron is a professional-grade fertilizer combining a balanced NPK ratio with essential Calcium, Magnesium, and micronutrients including black iron. Ideal for orchids, roses, bromeliads, lilies, and all potted or landscape plants, it promotes vigorous growth, vibrant blooms, and deep green foliage. Available in convenient sizes, it offers easy seasonal strength adjustments and is highly rated for safe, effective use without leaf burn.

## 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%

Review: Easy use, doesn’t cause leaf burns - Very good product. My plants are already responding very well to it
Review: Its fertilizer - perfect for my vandas

## 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 | #80,330 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #1,738 in Garden Fertilizers |
| Brand | Peters |
| Brand Name | Peters |
| Coverage | Medium |
| Customer Reviews | 4.7 out of 5 stars 68 Reviews |
| 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
- **Manufacturer:** Everris NA Inc
- **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)

## Available Options

This product comes in different **Item Package Quantity** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy use, doesn’t cause leaf burns
*by P***S on April 27, 2026*

Very good product. My plants are already responding very well to it

### ⭐⭐⭐⭐⭐ Its fertilizer
*by C***Y on April 19, 2026*

perfect for my vandas

### ⭐⭐⭐⭐⭐ Critical for Orchids
*by I***S on November 13, 2025*

This fertilizer is rather difficult to find, but it's worth the hunt. Many of the speakers we've had come to our orchid society have recommended this fertilizer, which was first promoted by Michigan State University. The calcium and magnesium supplements appear necessary for proper orchid development. We use it one-fourth to one-half recommended strengty monthly during the growing season.

## 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.

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-06-22*