Bury one row of block for raised bed?
I've read a few articles on the web about making a raised flower bed and it seems half say dig a ditch the depth of one block to create a foundation row and half don't mention that.
I thought I'd ask here to get some more direct answers. I bought a pallet of retaining blocks to make a simple border around my mailbox but I want to do it right. I live in NW Georgia and the soil at my house is pretty rough ( they call it 'chirt' around here ) so a raised bed was my logical choice so I could control the soil best. I planned to simply lay the block down 1 layer high to create my bed but I wanted some more opinions on this before I started going down the wrong path that will set me up for failure later.
If it helps, my idea is to have a layer of cardboard at the very bottom ( for composting/weed control ), then a layer of potting soil, then to top it off with cypress mulch. Thought that might help aid in any design I should consider later ...
Thanks in advance!