QUESTION: How much compost do I use?
ANSWER: When amending your garden soil with compost, work in one to two inches of compost. If you are adding compost to the top layer of soil, add ¼ to ½ an inch.
When amending the soil, the recommended maximum amount of compost is 30% to 50% for a soil blend, and no more than 30% for containers and raised beds. The ideal blend is 5% compost. When adding compost to your soil, a general rule of thumb is to add one part compost to a minimum of two parts native soil.