planting an herb garden

Question

I am making a raised herb garden. How deep should the soil be (in other words how deep should the box be) in order to sustain healthy herb plants?

Answer 1

Most garden plants need at least 6 to 12 inches for their roots, so 12 inches is ideal.
https://www.gardeningknowhow.com/edible/vegetables/vgen/raised-bed-soil-depth.htm