You can never have too much compost. And winter is the perfect time to make it using all those winter resources such as leaves and prunings. Here at PSI we have our unique 3-bin system; several bay systems; a banana circle; and our animals that are fantastic composting systems (worms, guinea pigs, ducks, quails, chooks, cows, etc). We also have our worm towers at work, composting some scraps and distributing humus directly into the vegetable gardens. Our coloured lids let everyone know which bin to put scraps into. Basically green means GO!