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Making your own compost A great source of bulky, organic material is your own garden compost. The best time to make some is in spring, because it will rot down faster. It’s dead easy to make, it costs nothing and it does the garden a whole lot of good. You can either buy a bin - many local councils run recycling schemes, so give them a call - or make your own heap. Play Hurl-a-heap, our fun game about how to build your own compost heap. What you need: If using a self-assembly version, as shown here, you need: Coarse draining material, garden waste, fresh manure and soil A piece of carpet or tarpaulin Otherwise you will also need: Four x 1.2m (4ft) high fence posts Wire netting or planks Galvanised hooks and eyes First prepare the compost area If erecting your own bin, hammer into the ground four 10cm x 10cm (4in x 4in) posts to enclose an area about 1sq m (40sq in.) Then bash the soil with the back of a spade to consolidate it. Next either tack wire netting to the posts, or nail planks around them, leaving the front side easily detachable so you can get the finished compost out. Add the drainage material In the bottom put a 10cm (4in) layer of coarse material, such as straw or twigs. Make the sandwich Put in a 15cm (6in) layer of garden waste and water if it’s dry. Put in alternate layers of different materials - like a sandwich. Turn up the heat Compost has to heat up to work properly. To do this it needs to have a certain critical mass. A metre cubed is good. It must also be layered to heat up effectively. On top of each layer add a sprinkling of manure or soil. This helps to introduce the bacteria and fungi (or 'heat') needed to break down the organic material. Cover it up Then cover with a sheet, an old bit of carpet, polythene or tarpaulin and leave it for about three months to rot down. Uncover, open the front, take all the compost out, then put it back again. This process adds air to the mix and helps it rot down faster. Three months later… Leave for another three months and your compost will be brown, crumbly and sweet-smelling; ready to use in the garden. These can go in: These can't: Shredded paper (although not shiny magazine type paper) cotton and wool fabrics Woody material like prunings and Brussels sprout stems. These need to be put through a shredder first Uncooked vegetable trimmings, peelings and tea bags from the kitchen Synthetic fabrics   Food scraps Annual weeds Meat or bones Tops of perennial weeds Diseased plant material Old bedding plants Soil pests Soft hedge clippings Any weeds with seedheads Dead leaves Perennial roots Lawn mowings Dog or cat waste Introduction Setting up your plot  Making your own compost  General care Growing vegetables Growing fruit The kitchen diary Greenhouse growing The herb garden Test your knowledge Go further Find plant lists on: Soft fruit Tree fruit Easy vegetables Herbs Greenhouse planting Find thousands more plants in the 91Èȱ¬ Gardening database. Watch video clips on: Basic principles of growing vegetables Growing seasonal vegetables Making a vegetable plot Making a compost heap Learn how to build a compost heap with our fun game, Hurl-a-heap. Create a virtual garden Techniques in the garden Plant profiles Design projects Plant database

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