Wool Pots are an award-winning, biodegradable and sustainable alternative to plastic plant pots. Made from raw washed wool, they retain water, promote root growth and strength, and act as a natural deterrent to slugs and snails. When planted out, they decompose into nutrient-rich plant food. Common sizes used are 9cm and 13cm, with these Wool Pots measuring 9.5cm wide and 18cm deep. Endorsed by BBC Gardeners' World and the Eden Project.