Garden / June 15, 2018 /
A raised bed is ideally 18 - 24 inches deep, but if you are building your raised beds on top of existing earth you wilI have some leeway here. I have successfully gardened in boxes built over earth with only one foot of soil depth. You can find both detailed instructions for building a raised beds and multiple choices for buying raised beds here.
Crop Rotation is a great tool for keeping pests and diseases out of the vegetable garden. Rotating your vegetables so they grow in different areas of the garden each year is an excellent way to cut down on diseases and insect pests that over winter in the soil. This really is not possible in small vegetable gardens. You will just have to be vigilant about not letting problems get out of hand. If a large scale problem should occur, such as squash beetles or septoria leaf spot on tomatoes, seriously consider not growing the crop for a year. It will be a sacrifice, but one year without is better than several years of a disappointing crop.