Compost is organic matter, such as orange peels and coffee grinds, that has been mixed together and allowed to decay, generally in a compost pile, before being used as fertilizer.
Making a mixture of organic materials, such as manure and leftover food, and leaving it someplace, such as a compost pile in the backyard or a bucket with a tight cover in the kitchen, is what compost is all about. The combination is also known as compost and after a period of sitting and decaying, voilà! It breaks down into fertilizer, which enriches the soil and makes the plants happy.
