what can be used in garden box under the soil

Question

I have two garden boxes I just built – 8ft x 4ft, height 2 ft, trying to figure out if I can fill the bottom half with peat moss or mulch, don’t want the weight of the soil and would like drainage.

Answer 1

This article tells how you can mix your own soil for raised beds. For a lighter layer in the bottom, you could use shredded bark or wood chips.

https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/best-soil-raised-garden-beds.htm