GREEN - Nitrogen rich, wet matter
Food scraps
Manure
Fresh grass clippings
Weeds without seeds
Vegetable scraps
Seaweed
Tea leaves and bags
Coffee grounds
BROWN - Carbon rich, dry matter
Torn newspaper/cardboard
Egg cartons
Tree prunings
Dry leaves
Bark, untreated sawdust
Wood ash
Twigs and sticks
Crushed shells