Gypsum 25kg

$27.00 (inc. GST)

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SKU: 9310522020914 Category: Tag:

Gypsum Clay Breaker – 25kg

Heavy-Duty Soil Conditioner for Large Areas

 

Brunnings Gypsum Clay Breaker 25kg is a bulk-size, natural soil conditioner ideal for improving the structure of heavy clay soils over larger garden areas, lawns, and landscaping projects. By breaking down compacted clay, gypsum increases water penetration, improves drainage, and encourages stronger, deeper root systems – all without changing soil pH.

Uses

  • Large-Scale Clay Soil Improvement – Perfect for big gardens, lawns, and landscape sites.
  • Turf Preparation – Conditions clay soil before laying new lawn.
  • Ornamental Gardens – Enhances soil aeration for flowers, shrubs, and trees.
  • Vegetable Beds – Improves drainage and root growth in heavy soils.
  • Orchards & Rural Blocks – Reduces compaction around fruit trees and paddocks.

Features

  • 100% natural gypsum (calcium sulfate dihydrate).
  • pH neutral – won’t alter soil acidity.
  • Improves soil structure without harming existing plants.
  • Bulk 25kg bag – ideal for covering large areas cost-effectively.
  • Safe for all plants when used as directed.

Benefits

  • Breaks up heavy, compacted clay to allow better water and air movement.
  • Encourages deeper root growth and healthier plants.
  • Reduces waterlogging and surface crusting.
  • Improves soil biology and earthworm activity.
  • Can be applied year-round for ongoing improvement.

Advantages

  • Covers larger areas in fewer applications.
  • Suitable for domestic, commercial, and rural use.
  • Long-lasting structural improvement to soil.
  • Works on all clay types, including sodic clays.

 

Chemical Makeup

 (Typical Analysis)

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

Recommendations & Warnings

✅ Recommendations:

  • Spread evenly over the soil surface and water in well.
  • For heavy clay, incorporate into the top 10–15cm of soil before planting.
  • Reapply annually for best results on compacted soils.

âš Warnings:

  • Not a fertiliser – it won’t supply nitrogen, phosphorus, or potassium.
  • Avoid inhaling dust – wear gloves, dust mask, and eye protection when handling.
  • Keep out of reach of children and pets.
  • Not suitable as a replacement for lime when correcting acidic soils.

Order Brunnings Gypsum Clay Breaker 25kg today and transform large areas of heavy, unworkable clay into healthy, 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.