I have a compost heap in the back garden that is brilliant. PLant cuttings, garden scraps and occasional, ahem, waterings and we get great compost out of it.

I have another on the allotment where there is nothing doing, nearly two years on what we put in it is sat there at the bottom looking like leaves, weeds and general stuff without being compost.

I'm contemplating chucking worms in it, watering it when no-ones looking but I don't really understand why one compost heap makes compost and the other one makes dried leaves.