Why Compost is Important and How to Create Your Own Compost The three most important words in real estate are; “location, location, location” but in gardening they are; “compost, compost, compost.” Compost or mulch is organic material that can change the poor western soils that will not grow much of anything to excellent soil. Compost helps release minerals that are tightly locked into the fine particles that make up clay soil. Compost added to sandy soil will provide moisture holding elements so water and nutrients won’t drain quickly through the sand. Compost with its organic origins will cool the soil to help perennials get through drought and summer heat. Compost...