Gypsum 10kg

Gypsum Clay Breaker

Improve Clay Soils & Boost Root Growth

Brunnings Gypsum Clay Breaker is a natural soil conditioner specially designed to improve the structure of heavy clay soils. By breaking down compacted clay, gypsum allows air, water, and nutrients to penetrate more effectively, creating the ideal environment for healthy plant roots and stronger growth.

Uses

• Clay Soil Improvement – Loosens compacted, waterlogged soils.
• Garden Beds – Enhances soil aeration for vegetables, flowers, and shrubs.
• Lawns – Improves drainage and reduces surface crusting.
• Fruit Trees & Ornamentals – Encourages deep, healthy root systems.
• Landscape & Turf Establishment – Prepares clay soils before laying turf or planting.

Features

• 100% natural gypsum (calcium sulfate dihydrate).
• pH neutral – will not alter soil acidity.
• Easy to apply and safe for all plants.
• Long-lasting soil structure improvement.
• Suitable for use in organic gardening when applied responsibly.

Benefits

• Breaks up heavy, compacted clay soils without affecting soil pH.
• Improves water infiltration and drainage.
• Encourages stronger, deeper root growth.
• Helps prevent waterlogging and root rot.
• Promotes healthier soil biology and earthworm activity.

Advantages

• Works on all clay types, including sodic clays.
• Can be applied year-round.
• Safe for lawns, vegetables, fruit trees, and ornamentals.
• Easy to spread and incorporate into the soil.

Chemical Makeup

 (Typical Analysis)

• Calcium Sulfate Dihydrate (CaSOâ‚„·2Hâ‚‚O) – 90%+
• Calcium (Ca) – ~23%
• Sulfur (S) – ~18%
• Trace minerals – <2%

Recommendations & Warnings

✅ Recommendations:

• Apply before planting or on established gardens/lawns as needed.
• Water in well after application for best results.
• For compacted soils, repeat annually until desired structure is achieved.

Warnings:

• Not a fertiliser – it does not add nitrogen, phosphorus, or potassium. Use with a balanced fertiliser if nutrient levels are low.
• Avoid inhaling dust – wear gloves, mask, and eye protection when handling.
• Keep out of reach of children and pets.
• Do not use as a substitute for lime when correcting acidic soils – gypsum is pH neutral and will not raise soil pH

Order Brunnings Gypsum Clay Breaker today and transform heavy, unworkable clay into light, well-drained, and productive soil.

• For most Bulk products including Gravel, Mulch, Soil, Sand, Firewood, and Pebbles, we can do next-day delivery.
• Bulka bags are delivered within 1–2 days. Delivered Monday to Friday only.
• Bricks, Blocks, and Pavers are delivered within 3–5 working days depending on location.
• Turf is generally delivered within 3–5 days depending on the weather.

For urgent deliveries please call us on 02 4739 8899.