---
product_id: 10912586
title: "RP28 Rock Phosphate – 28lb Organic Plant Fertilizer! for Outdoor Flower Or Vegetable Gardens – Promotes Blooming & Root Growth – for Use On All Plants"
brand: "espoma"
price: "1195.49 DT"
currency: TND
in_stock: true
reviews_count: 9
category: "Espoma"
url: https://www.desertcart.tn/products/10912586-rp28-rock-phosphate-28lb-organic-plant-fertilizer-for-outdoor-flower
store_origin: TN
region: Tunisia
---

# 28lb bulk for long-lasting garden power 100% organic phosphorus source from natural deposits Pelletized form for easy, dust-free application RP28 Rock Phosphate – 28lb Organic Plant Fertilizer! for Outdoor Flower Or Vegetable Gardens – Promotes Blooming & Root Growth – for Use On All Plants

**Brand:** espoma
**Price:** 1195.49 DT
**Availability:** ✅ In Stock

## Summary

> 🌿 Power Your Garden Organically — Grow Bold, Grow Beautiful!

## Quick Answers

- **What is this?** RP28 Rock Phosphate – 28lb Organic Plant Fertilizer! for Outdoor Flower Or Vegetable Gardens – Promotes Blooming & Root Growth – for Use On All Plants by espoma
- **How much does it cost?** 1195.49 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/10912586-rp28-rock-phosphate-28lb-organic-plant-fertilizer-for-outdoor-flower)

## Best For

- espoma enthusiasts

## Why This Product

- Trusted espoma brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Eco-Friendly & Safe:** All-natural mineral fertilizer, safe for your family, pets, and the planet
- • **Effortless Application:** Pelletized formula means less mess and precise soil integration every time
- • **Sustain Your Soil’s Vitality:** Rich, natural phosphorus boosts root growth & blooming for vibrant plants
- • **Trusted by Pros & Hobbyists Alike:** Highly rated with 4.6 stars, perfect for flowers, veggies, and all outdoor plants
- • **Generous Supply for Serious Gardeners:** 28 pounds of premium rock phosphate ensures season-long nourishment

## Overview

Espoma RP28 Rock Phosphate is a 28-pound bag of organic, pelletized phosphorus fertilizer derived from natural mineral deposits. Designed to correct phosphorus-deficient soils, it promotes robust root development and vibrant blooming in all outdoor plants. Safe for people, pets, and the environment, this premium fertilizer offers a dust-free application and long-lasting nourishment, making it a top choice for both professional and home gardeners.

## Description

desertcart.com : Espoma RP28 Rock Phosphate – 28lb Organic Plant Fertilizer! for Outdoor Flower Or Vegetable Gardens – Promotes Blooming & Root Growth – for Use On All Plants : Soil And Soil Amendments : Patio, Lawn & Garden

Review: Very good product, thank you! - Very good product, thank you!
Review: More cost-effective than buying the powdered version - I’m a second year micro flower farmer and I use rock phosphate in my soil block mixture. The powdered version was more expensive so I bought this one and I just run it through my coffee grinder when I’m ready to use it. It works great and helps add nutrients to my soil blocks mix so my seedlings get off to a great start.

## Features

- ORGANIC PLANT POWER - This high phosphorus fertilizer is a natural and organic source of phosphorus that helps correct phosphorus deficient soils
- ALL NATURAL - This phosphate fertilizer is derived from phosphorus-rich natural deposits, ensuring a premium and authentic source of this essential nutrient for your garden.
- APPLICATION – Pelletized for easy application with less dust, apply to the soil according to the instructions for best results
- SAFE FOR PEOPLE, PETS, & PLANET - An all-natural mineral with no sludges or fillers with consistency and quality guaranteed
- LARGE VOLUME - This rock phosphate organic fertilizer is a 28-pound bag that provides ample supply, ensuring your garden receives consistent, long-lasting nourishment for optimal plant development.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003B59Q1A |
| Application Method | Mix into the soil |
| Best Sellers Rank | #85,899 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #1,710 in Garden Fertilizers |
| Brand | Espoma |
| Brand Name | Espoma |
| Coverage | Medium |
| Customer Reviews | 4.6 out of 5 stars 391 Reviews |
| Item Form | Pellets |
| Item Type Name | Espoma RP28 Rock Phosphate, 28-Pound |
| Item Weight | 28 pounds |
| Manufacturer | Espoma |
| Model Number | RP28 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | RP28 |
| Specific Uses For Product | Organic |
| Target Species | Flowers, Vegetables |
| UPC | 050197012287 |
| Unit Count | 448 Fluid Ounces |

## Product Details

- **Brand:** Espoma
- **Item Form:** Pellets
- **Item Weight:** 28 Pounds
- **Manufacturer:** Espoma
- **Specific Uses For Product:** Organic

## Images

![RP28 Rock Phosphate – 28lb Organic Plant Fertilizer! for Outdoor Flower Or Vegetable Gardens – Promotes Blooming & Root Growth – for Use On All Plants - Image 1](https://m.media-amazon.com/images/I/81SINT8Mb1L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very good product, thank you!
*by A***R on February 1, 2026*

Very good product, thank you!

### ⭐⭐⭐⭐⭐ More cost-effective than buying the powdered version
*by A***E on June 26, 2025*

I’m a second year micro flower farmer and I use rock phosphate in my soil block mixture. The powdered version was more expensive so I bought this one and I just run it through my coffee grinder when I’m ready to use it. It works great and helps add nutrients to my soil blocks mix so my seedlings get off to a great start.

### ⭐⭐⭐⭐⭐ A+ just what my garden needed
*by D***N on May 19, 2026*

Works perfect as expected just what my garden needed

## Frequently Bought Together

- Espoma RP28 Rock Phosphate – 28lb Organic Plant Fertilizer! for Outdoor Flower Or Vegetable Gardens – Promotes Blooming & Root Growth – for Use On All Plants
- Espoma Organic Bone Meal Fertilizer 4-12-0. All-Natural Plant Food Source of Nitrogen and Phosphorus For Organic Gardening. For Bulbs & Other Flowering Plants. 24 lb. bag.
- Espoma Organic Blood Meal Fertilizer 12-0-0. All-Natural Plant Food Source of Nitrogen for Organic Gardening. for Flowers, Vegetables, Trees & Shrubs. 17 lb Bag.

---

## 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.tn/products/10912586-rp28-rock-phosphate-28lb-organic-plant-fertilizer-for-outdoor-flower](https://www.desertcart.tn/products/10912586-rp28-rock-phosphate-28lb-organic-plant-fertilizer-for-outdoor-flower)

---

*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-10-28*