Compost can be made all year round ... the contents of their pet hamster, gerbil or bird cage when they clean it out, fruit and vegetable peelings from the kitchen - even eggshells!

4. Make the compost cage What makes keyhole gardening so effective is the compost heap in the middle of the garden bed, and the best way to keep this compost together is to use a cage. To do this ...

This small garden also is sustainable because it includes a compost cage in the middle. As it breaks down, the compost leaches organic matter and nutrition out the bottom into the soil ...

Most leaves can be turned into leaf mould, but some take longer to compost than others ... It's a simple cage-like structure that shouldn't take any longer than 30 minutes to put together.