Raised bed gardens, soil
What kind of soil should be used in a raised bed garden?|
Different types of soils can be successfully used for raised bed gardens. Since most people used raised beds to avoid problems with their own soil, using garden soil is generally not recommended.
A mixture of good quality topsoil plus organic matter such as compost plus pumice, vermiculite or perlite, in a ratio of about one-third each by volume makes a satisfactory soil mix for the raised bed garden.