---
product_id: 14730160
title: "MSU Orchid Fertilizer 13-3-15 Reverse Osmosis, Rain, Tap Water Formula 1/2 Pound"
brand: "jim's orchid supplies"
price: "128.26 DT"
currency: TND
in_stock: true
category: "Jim's Orchid Supplies"
url: https://www.desertcart.tn/products/14730160-msu-orchid-fertilizer-13-3-15-reverse-osmosis-rain-tap
store_origin: TN
region: Tunisia
---

# 13-3-15 NPK for balanced growth Optimized for Reverse Osmosis & Rainwater Includes Calcium & Magnesium micronutrients MSU Orchid Fertilizer 13-3-15 Reverse Osmosis, Rain, Tap Water Formula 1/2 Pound

**Brand:** jim's orchid supplies
**Price:** 128.26 DT
**Availability:** ✅ In Stock

## Summary

> 🌸 Feed your tropical jungle like a pro—because your plants deserve the VIP treatment!

## Quick Answers

- **What is this?** MSU Orchid Fertilizer 13-3-15 Reverse Osmosis, Rain, Tap Water Formula 1/2 Pound by jim's orchid supplies
- **How much does it cost?** 128.26 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/14730160-msu-orchid-fertilizer-13-3-15-reverse-osmosis-rain-tap)

## Best For

- jim's orchid supplies enthusiasts

## Why This Product

- Trusted jim's orchid supplies brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Micronutrient Powerhouse:** Infused with essential calcium and magnesium to strengthen cell walls and enhance photosynthesis.
- • **Water-Smart Compatibility:** Engineered specifically for tap, rain, and reverse osmosis water to maximize nutrient uptake and plant health.
- • **Versatile Tropical Booster:** Ideal for orchids, anthuriums, philodendrons, monsteras, and all your favorite tropical houseplants.
- • **Precision-Formulated NPK Blend:** Boost vibrant blooms and lush foliage with the perfect 13-3-15 ratio tailored for tropical plants.
- • **Trusted by Award-Winning Growers:** Globally accredited secret ingredient behind prize-winning orchids and tropicals—join the elite growers’ circle.

## Overview

MSU Orchid Fertilizer 13-3-15 is a premium half-pound granule formula designed for optimal use with reverse osmosis, rain, or tap water. Enriched with calcium, magnesium, and essential micronutrients, it supports vigorous growth and vibrant blooms in orchids and tropical plants. Trusted by growers worldwide, this balanced fertilizer is your go-to for award-winning plant health and lush indoor jungles.

## Description

8oz. (1/2lb) of Greencare's 13-3-15 Orchid Fertilizer in a sealed bag. Please note the dye in this product is the only thing that is not carefully measured during manufacture. Color intensity may vary which in turn will affect granule size, but this is 100% pure 13-3-15 fertilizer with no additives

## Features

- Includes Calcium and Magnesium
- Includes other essential micronutrients
- Formulated as their Tap water, Rain Water or Reverse Osmosis Blend
- Outstand results on all plants. Has been accredited by numerous growers around the world as the secret ingredient to their plants being awarded
- This is a general purtpose blend, i twill work great on all plants, but works amazing on Orchids, Anthuriums, Philocdenxdrons, Monstera and other tropicals

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00J1BEJB0 |
| Best Sellers Rank | #160,190 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #2,757 in Garden Fertilizers |
| Brand Name | Jim's Orchid Supplies |
| Coverage | Medium |
| Customer Reviews | 4.3 4.3 out of 5 stars (57) |
| Item Form | Granules, Powder |
| Item Weight | 0.5 Pounds |
| Liquid Volume | 0.5 Liters |
| Manufacturer | GREENCARE Fertilizers, INC |
| Mixing Ratio | 1 gram per 3.78541 liters |
| Model Number | MSURO.5 |
| Number of Items | 1 |
| Part Number | MSURO.5 |
| Target Species | Orchids, Anthuriums, Philocdenxdrons, Monstera and other tropicals |
| Unit Count | 8 Ounce |

## Product Details

- **Brand:** Jim's Orchid Supplies
- **Item Form:** Granules, Powder
- **Item Weight:** 0.5 Pounds
- **Liquid Volume:** 0.5 Liters
- **Manufacturer:** GREENCARE Fertilizers, INC

## Images

![MSU Orchid Fertilizer 13-3-15 Reverse Osmosis, Rain, Tap Water Formula 1/2 Pound - Image 1](https://m.media-amazon.com/images/I/61dpSkcthAL.jpg)

## Questions & Answers

**Q: Hi grams per liter or quart?**
A: I come up with 1.19 gram per quart of water. At 1 teaspoon per gallon. 4.76 grams = 1 teaspoon. 4.76 divided by 4 quarts. I Goggled teaspoon to gram conversion.

**Q: Does this have micro nutrients?**
A: Yes as noted in product description: Guaranteed Analysis Macronutrients: 13.0% Total Nitrogen (Nitrate Nitrogen 12.5%, Ammoniacal Nitrogen 0.7%) 3% Available Phosphate Acid (P2O5) 15.9% Soluble Potash (K2O) 8.0% Calcium (Ca) 2% Magnesium (Mg) Derived from calcium nitrate, magnesium nitrate, potassium nitrate and monopotassium phosphate Micronutrients: 0.177% Iron (Fe) 0.088% Manganese (Mn) 0.044% Zinc (Zn) 0.044% Copper (Cu) 0.018% Boron (B) 0.018% Molybdenum (Mo)

**Q: If I use 1/2tsp per gallon of water, do I use it to water once a week?**
A: That's how I've been using MSU Orchid Fertilizer for years.  I was given the old trope, "feed them weakly weekly" and find it's good advice.  Half label strength once per week.

## Frequently Bought Together

- MSU Orchid Fertilizer 13-3-15 Reverse Osmosis, Rain, Tap Water Formula 1/2 Pound
- MasterBlend 4-18-38 Tomato & Vegetable Fertilizer - Bulk 1, 5 or 25 Pounds (5 Pounds)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-07-18*