---
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: "VT7705"
currency: VUV
in_stock: true
url: https://www.desertcart.vu/products/14730160-msu-orchid-fertilizer-13-3-15-reverse-osmosis-rain-tap
store_origin: VU
region: Vanuatu
---

# Calcium & Magnesium 0.5L Liquid Volume 8oz Item Weight MSU Orchid Fertilizer 13-3-15 Reverse Osmosis, Rain, Tap Water Formula 1/2 Pound

**Brand:** jim's orchid supplies
**Price:** VT7705
**Availability:** ✅ In Stock

## Summary

> 🌸 Elevate Your Plant Game with the Secret Sauce of Growers!

## 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?** VT7705 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/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

- • **🌍 Grower Approved:** Trusted by global horticulturists for outstanding results.
- • **📏 Easy Mixing Ratio:** Just 1 gram per 3.78541 liters for hassle-free application.
- • **🌟 Unlock Your Green Thumb:** Transform your plants into show-stoppers with our secret formula!
- • **🌿 Tailored for Tropical Triumph:** Perfectly crafted for Orchids and other tropical beauties.
- • **💧 Versatile Water Compatibility:** Works wonders with tap, rain, or reverse osmosis water.

## Overview

MSU Orchid Fertilizer 13-3-15 is a premium blend designed for optimal plant growth, featuring essential nutrients like Calcium and Magnesium. This versatile formula is effective with various water types and is particularly beneficial for orchids and other tropical plants, making it a favorite among professional growers worldwide.

## Description

MSU Orchid Fertilizer 13-3-15 Reverse Osmosis, Rain, Tap Water Formula 1/2 Pound

## 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 |
|---------------|-------|
| Liquid Volume | 0.5 Liters |
| Item Weight | 8 ounces |
| Mixing Ratio | 1 gram per 3.78541 liters |
| Specific Uses For Product | Gardening and plant care |
| Target Species | Orchids, Anthuriums, Philocdenxdrons, Monstera and other tropicals |
| Coverage | Medium |
| Item Form | Granules, Powder |

## Product Details

- **Brand:** Jim's Orchid Supplies
- **Item Weight:** 0.5 Pounds
- **Item Form:** Granules, Powder
- **Coverage:** Medium
- **Liquid Volume:** 0.5 Liters

## 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 Vanuatu*
*Store origin: VU*
*Last updated: 2026-02-24*