---
product_id: 11260529
title: "Calcium Sulfate Dihydrate - Gypsum - CaSO4*2H2O - 1 Pound"
brand: "alpha chemicals"
price: "$47"
currency: NZD
in_stock: true
reviews_count: 13
category: "Alpha Chemicals"
url: https://www.desertcart.nz/products/11260529-calcium-sulfate-dihydrate-gypsum-caso4-2h2o-1-pound
store_origin: NZ
region: New Zealand
---

# Optimizes soil pH balance Rich in calcium & sulfur 1 lb ultra-fine powder Calcium Sulfate Dihydrate - Gypsum - CaSO4*2H2O - 1 Pound

**Brand:** alpha chemicals
**Price:** $47
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your garden game with gypsum power – because your plants deserve the best!

## Quick Answers

- **What is this?** Calcium Sulfate Dihydrate - Gypsum - CaSO4*2H2O - 1 Pound by alpha chemicals
- **How much does it cost?** $47 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/11260529-calcium-sulfate-dihydrate-gypsum-caso4-2h2o-1-pound)

## Best For

- alpha chemicals enthusiasts

## Why This Product

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

## Key Features

- • **Calcium & Sulfur Boost:** Essential nutrients that combat blossom end rot and promote robust growth.
- • **Precision Soil Conditioning:** Transform your garden with a perfectly balanced soil pH for thriving plants.
- • **Ultra-Fine Feed Grade Powder:** Easily absorbed and evenly distributed for maximum effectiveness.
- • **Trusted Quality & Convenience:** Packaged in a manageable 1-pound size for effortless application and storage.
- • **Versatile Gardening Essential:** Ideal for soil amendment, pH reduction, and multiple horticultural uses.

## Overview

Calcium Sulfate Dihydrate (Gypsum) is a premium feed-grade, ultra-fine powder that delivers essential calcium and sulfur to your soil. Perfect for conditioning soil, reducing pH, and preventing common plant issues like blossom end rot, this 1-pound pack offers a versatile, easy-to-use solution trusted by gardeners aiming for healthier, more vibrant plants.

## Description

Calcium sulfate dihydrate is a good source of calcium and sulfur that has many uses including soil conditioner, lowers soil pH, along with a wide range of other uses.

Review: Great for treating blossom end rot - Whenever I notice my tomato or pepper plants are starting to get blossom end rot I apply this and it clears up. Very happy with this product, just ordered another since I finally ran out.
Review: Excellent product and package - Craft project

## Features

- Feed Grade
- Very fine powder
- Also known as gypsum
- Used as a soil conditioner, soil pH reducer, and many other uses.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B008LETYN6 |
| Best Sellers Rank | #232,527 in Health & Household ( See Top 100 in Health & Household ) #1,090 in Calcium Mineral Supplements |
| Brand | Alpha Chemicals |
| Date First Available | July 14, 2012 |
| Is Discontinued By Manufacturer | No |
| Item Form | Powder |
| Item Weight | 1.1 pounds |
| Item model number | SSPGypsum1lb |
| Number of Items | 1 |
| Product Dimensions | 5.1 x 8.1 x 3.1 inches |
| Specific Uses For Product | Soil Conditioning |
| UPC | 725410978977 |
| Unit Count | 16 Ounce |

## Product Details

- **Brand:** Alpha Chemicals
- **Item Form:** Powder
- **Item Weight:** 1.1 Pounds
- **Number of Items:** 1
- **Specific Uses For Product:** Soil Conditioning

## Images

![Calcium Sulfate Dihydrate - Gypsum - CaSO4*2H2O - 1 Pound - Image 1](https://m.media-amazon.com/images/I/51SnTpyFFkL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great for treating blossom end rot
*by J***E on October 3, 2024*

Whenever I notice my tomato or pepper plants are starting to get blossom end rot I apply this and it clears up. Very happy with this product, just ordered another since I finally ran out.

### ⭐⭐⭐⭐⭐ Excellent product and package
*by M***E on January 24, 2025*

Craft project

### ⭐⭐⭐⭐⭐ Love this stuff
*by S***N on November 9, 2023*

Great additive to your dirt… i’ve been using this exact product for 3 years and love it. Never disappoints.

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**Shop now:** [https://www.desertcart.nz/products/11260529-calcium-sulfate-dihydrate-gypsum-caso4-2h2o-1-pound](https://www.desertcart.nz/products/11260529-calcium-sulfate-dihydrate-gypsum-caso4-2h2o-1-pound)

---

*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-19*