Watch your greens flourish with the wilko Professional Compost Bag. This professional mix contains 50% composted wood fibre to open the mix-up and get air to the roots and a precise blend of three different grades of peats to balance drainage and water holding. With added lime, it is pH balanced to give the optimum growing conditions, and with starter fertiliser and a wetting agent to ensure even water distribution in pots and containers. Plus, it contains a six-month controlled-release fertiliser, meaning whatever you grow will get a slow and steady stream of nutrients for six months. It is perfect for pots, baskets and planters for growing any plants. Supplied as two 50L bags.