---
product_id: 741352980
title: "1 lb Gypsum - Natural Mineral Calcium Sulfate Dihydrate Powder - Garden Soil Amendment Fertilizer for Lawns & Plants - Calcium Sulfate Soil Conditioner - 100% Water Soluble 16 oz"
brand: "southside plants"
price: "A$10"
currency: AUD
in_stock: false
reviews_count: 8
url: https://www.desertcart.com.au/products/741352980-1-lb-gypsum-natural-mineral-calcium-sulfate-dihydrate-powder-garden
store_origin: AU
region: Australia
---

# Calcium & sulfur boost 100% water soluble 1 lb pure gypsum powder 1 lb Gypsum - Natural Mineral Calcium Sulfate Dihydrate Powder - Garden Soil Amendment Fertilizer for Lawns & Plants - Calcium Sulfate Soil Conditioner - 100% Water Soluble 16 oz

**Brand:** southside plants
**Price:** A$10
**Availability:** ❌ Out of Stock

## Summary

> 🌿 Unlock the secret to lush, resilient gardens with every sprinkle!

## Quick Answers

- **What is this?** 1 lb Gypsum - Natural Mineral Calcium Sulfate Dihydrate Powder - Garden Soil Amendment Fertilizer for Lawns & Plants - Calcium Sulfate Soil Conditioner - 100% Water Soluble 16 oz by southside plants
- **How much does it cost?** A$10 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/741352980-1-lb-gypsum-natural-mineral-calcium-sulfate-dihydrate-powder-garden)

## Best For

- southside plants enthusiasts

## Why This Product

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

## Key Features

- • **Revive Your Roots:** Calcium replaces harmful sodium ions, reversing salt damage and revitalizing plant hydration.
- • **Safe & Sustainable:** Non-toxic to humans, pets, and beneficial organisms—safe for your entire garden ecosystem.
- • **Nutrient Powerhouse:** Delivers essential calcium and sulfur without altering soil pH, perfect for sensitive plants.
- • **Breathe Life Into Soil:** Loosens compacted soil to improve drainage, aeration, and root expansion for healthier growth.
- • **Tailored for Tough Soils:** Ideal for clay and high-mineral water areas, ensuring your plants thrive where others struggle.

## Overview

This 1 lb bag of natural gypsum powder is a 100% water-soluble soil amendment that improves soil structure, reverses salt damage, and supplies essential calcium and sulfur to promote robust plant growth without altering soil pH. Safe for all garden ecosystems and especially effective for compacted or clay soils.

## Description

Southside Plants 1 lb Gypsum - Ground Calcium Sulfate Dihydrate Powder - Garden Soil Amendment Fertilizer for Lawns & Plants - Calcium Sulfate Soil Conditioner - 100% Water Soluble 16 ozVery fine, free-flowing, odorless, tasteless white powder produced by fine-grinding and air separating a select grade of high-purity white gypsum that is safe for use in food products and in horticultural applications.● Gypsum is an Excellent Source of Calcium● Provides Essential Sulfur● Breaks Up Compacted Soil like clay● Gypsum Repairs Damage from Salt● Is safe to use around people and pets.

## Features

- WHY YOUR PLANTS NEED GYPSUM - Do you water your plants with tap water or high-mineral well water? Is your soil compacted with poor drainage? Are your plants’ leaves scorched, brown tipped, curling, or pale? Your plants could benefit from the beneficial nutrients of gypsum. Non-toxic to humans, pets, and beneficial organisms. Gypsum does not burn skin, roots, or leaves even if accidentally overapplied.
- REPAIRS DAMAGE FROM SALTS: Excessive salts from your water or other soil additives can negatively impact plant health by disrupting hydration and nutrient transport. Salt damage can appear as scorched leaves that brown, curl, or wilt. Plant roots also struggle to hydrate and transport nutrients effectively. Gypsum can reverse salt accumulation in soil over time because the calcium replaces sodium ions removing salt from the root zone, while sulfate binds to excess salts to reduce damage.
- IMPROVES SOIL STRUCTURE: Gypsum helps loosen and aerate heavy, compacted soil by breaking apart the tiny bonded soil particles over time. This opens up the soil structure, improves drainage, increases water retention and root penetration, and facilitates easier root expansion and growth. Compact soil stunts the growth of plants by causing root rot, wilting, nutrient deficiencies, and fungal issues. Especially useful for improving clay soils, gypsum can be used to aerate any compact soil.
- PLANTS NEED CALCIUM: Calcium deficiency in plants may cause stunted growth, unnaturally curled leaves, brown leaf tips/margins, poor fruiting, and weak stems. Gypsum provides plants with calcium that plays a key role in plant structure, enzyme and protein activation, and growth and development. Calcium promotes healthy root and leaf growth, regulates nutrients within plants, and strengthens cell membranes and cell walls. Unlike lime, gypsum does not affect the pH of soil.
- PROVIDES ESSENTIAL SULPHUR: Sulfur deficiency appears in plants as overall paleness, especially in younger leaves, along with slow growth and reduced seed production. Gypsum provides sulfur that helps with root growth, chlorophyll formation, and the activation of plant enzymes for nitrogen metabolism and seed formation. Sulfur is particularly beneficial for brassicas like broccoli, cabbage, and cauliflower and for alliums like onions and garlic, which need more sulfur for optimal taste.

## Product Details

- **Brand:** Southside Plants
- **Item Form:** Powder
- **Specific Uses For Product:** Gardening,Lawns,Root Development
- **Manufacturer:** Southside Plants
- **Number of Items:** 1

## Images

![1 lb Gypsum - Natural Mineral Calcium Sulfate Dihydrate Powder - Garden Soil Amendment Fertilizer for Lawns & Plants - Calcium Sulfate Soil Conditioner - 100% Water Soluble 16 oz - Image 1](https://m.media-amazon.com/images/I/716lrMtPDAL.jpg)
![1 lb Gypsum - Natural Mineral Calcium Sulfate Dihydrate Powder - Garden Soil Amendment Fertilizer for Lawns & Plants - Calcium Sulfate Soil Conditioner - 100% Water Soluble 16 oz - Image 2](https://m.media-amazon.com/images/I/91yO6-ckv1L.jpg)
![1 lb Gypsum - Natural Mineral Calcium Sulfate Dihydrate Powder - Garden Soil Amendment Fertilizer for Lawns & Plants - Calcium Sulfate Soil Conditioner - 100% Water Soluble 16 oz - Image 3](https://m.media-amazon.com/images/I/81FVCOp75JL.jpg)
![1 lb Gypsum - Natural Mineral Calcium Sulfate Dihydrate Powder - Garden Soil Amendment Fertilizer for Lawns & Plants - Calcium Sulfate Soil Conditioner - 100% Water Soluble 16 oz - Image 4](https://m.media-amazon.com/images/I/71Hn2+-903L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very good product
*by A***R on November 22, 2024*

Is a great product and my plants love it

### ⭐⭐⭐⭐⭐ gypsum
*by M***D on May 9, 2023*

I have put the gypsum in the soil where there was water accumulation. Hope fully it will dry out the water

### ⭐⭐⭐⭐⭐ Arrived
*by S***N on April 8, 2023*

Was gypsum

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-01-29*