Gardeners have been making and using compost for hundreds of years and we talk a lot about “finished compost”, but what is it? When is compost really finished?
You can make so-called finished compost using a hot compost pile in a few months, but compost continues to decompose for many years. If it is not fully composted when it comes out of the compost pile is it really finished?
When I first asked this question I thought is was a simple one with a simple answer, but even science struggles to define finished compost.