Wilko compost maker 15kg is formulated to speed up the natural composting process of garden waste in a compost bin or compost heap it promotes the production of rich crumbly compost which is an ideal source of organic matter for flower beds and vegetable plots the fast acting formula takes only 6 8 weeks to transform your garden and kitchen waste into compost in the summer may take up to 6 months in colder winter weatherwarningstore away from children pets and foodstuffs