Garden / June 10, 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.
Almost any plant will grow in a container if the container is big enough. Straw bales themselves can be used as containers for gardening. Be sure to provide enough water and food when gardening in containers, as soil in containers will dry out faster and nutrients tend to flush through them with greater speed than their in-ground counterparts.