Answer: One of the best growing media is compost. You can make your own or may be able to locate a local municipal source. Well rotted manure or rotted leaves can also form the basis for your raised beds. Also Garden Centers usually have a variety of soils that can be mixed with organic amendments that will perform well. If you can't fine enough compost, try mixing in equal parts of peat moss and topsoil to form a rich bed.
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