100% natural fibre comprising the outer husks of coconuts. When soaked in water this brick will make approximately 10 litres of potting medium. Simply soak brick in a large container with warm water for at least 15 minutes. Once absorbed fluff up the coir to achieve an even texture. Coir can be used on its own in pot plants, or mixed 2 parts coir, 1 part compost and 1 part perlite. If used on its own ensure you supplement with a plant food when watering. This is a vegan product. Coir brick dimensions : 10cm x 4cm x 20cm RRP : £12.95