Sea Shell Powder

Sea Shell Powder

Sea Shell Powder is a finely milled source of calcium carbonate that breaks down slowly, releasing calcium while gently moderating soil acidity.

Benefits of Sea Shell Powder for Your Garden

• Provides Calcium: Delivers a steady supply of calcium for consistent growth
• Natural pH Buffer: Buffers acidity over the long term, helping to stabilise pH.
• Supports Soil Biolog: Encourages a balanced microbial community in living soils.

Additional Advantages

• Sourced from naturally occurring North Sea deposits
• Easy to blend or top-dress
• Suitable for indoor or outdoor beds and pots

Application Rates

• Soil Mix: Add 1–6g per litre of soil 
• Top Dressing: Add 0.5–2g per litre of amendable soil volume 

For best results, amendments should be applied after a soil test. Contact us if you need advice.

Typical Composition

• Calcium Carbonate (CaCO₃): 96%
• Calcium (Ca): 33%
• Magnesium (Mg): 0.15%
• Sodium (Na): 0.3%