Some things I don’t want in my compost heap because I’m not convinced that they’ll be killed by even a hot composting process. These include lily bulbs, oxalis bulbs, watsonia bulbs, kikuyu grass etc. I put them in a maize sack, put them in a rubbish bin full of rain water and use the water with its nutrients as a liquid feed for seedlings. I add some EM 1 to the mixture. Once the contents of the bag has rotted down to a sludge I’ll add it to the compost heap.