Soil & Compost

Most raised bed problems trace back to the soil: too little of it, a mix that drains too fast or too slowly, or a bed that was filled once and never replenished. Good soil is loose, holds moisture without staying soggy, and contains enough organic matter to feed soil life.

Start with the soil calculator if you are filling a new bed, then read about mixes and compost. A soil test from your state's land-grant university lab is the most reliable way to know what your soil actually needs.