VermiculiteAnother firm favourite with keen gardeners is vermiculite and when you want to retain water than choose to add vermiculite to your chosen media. PLANT! T Vermiculite is a natural sterile soft mica mineral with great water holding and insulation properties. It also offers a high cation exchange capacity which means it will slowly release nutrients back to your plant which it has absorbed during watering. Using PLANT! T Vermiculite can also aid