Coir grow cubes have very high air porosity to foster extreme root growth. Coir grow cubes come with a dimple to seed directly. How to use: Add water to your Coir Growcube and watch it expand into the biodegradable cover – this process will take 15-20 minutes Add the required nutrients Place in your chosen seeds/plants Once your seeds have successfully germinated/your plants are growing bigger, place the Coir Growcube into the ground or in a pot. The cover will biodegrade, the roots will develop and the plant will continue to flourish Other Details: Material: Coir Fibre and Biodegradable Cover Dimensions: L10 x W10 cm