TerraSoil Calcium Bentonite Clay — Organic Soil Conditioner for Water & Nutrient Retention
TerraSoil Calcium Bentonite Clay Soil Conditioner is a natural soil amendment made from high-quality calcium bentonite clay that improves water holding capacity, nutrient retention, and soil structure. Unlike simple fillers or inert additives, this clay works deep in the soil profile to help roots access water and minerals more consistently, especially in sandy, light, or fast-draining soils.
Ideal for vegetables, herbs, ornamentals, fruit trees, and container gardens, this soil conditioner enhances resilience in both dry and Mediterranean climates. By increasing soil’s cation exchange capacity (CEC), it helps your existing soil hold more nutrients, reduce leaching, and support healthier, more productive plant growth.
Whether you’re gardening in raised beds, containers, or open ground, adding Calcium Bentonite Clay supports strong root systems, better drought tolerance, and improved nutrient availability, all while being 100% natural and compatible with organic growing systems.
Calcium Bentonite Clay - Soil Conditioner - Water and Nutrient Retention
General soil improvement:
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Mix 2–5% bentonite by volume into the top 15–30 cm (6–12 in) of soil before planting.
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For sandy soils, use the higher end of the range.
Raised beds:
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Blend thoroughly with compost and existing soil.
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Water well after incorporation.
Containers:
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Mix a small amount (approx 1–2 tbsp per litre of soil) into the potting mix to improve moisture balance.
For best results, combine with organic matter (compost, worm castings) for long-term soil health.
Potting Soil / Compost: < 15%v/v.
Gardens: 0.25 - 3Kg/m2 depending on soil type.
Farmers: Use between 50-1000kg/ha/year (Check your soil type and analysis to determine the right dosage)
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