Compost and top soil is better than potting soil.

Mine average about a foot tall. Some areas mine are 8 inches tall and others it's 2.5 feet due to the fact my yard slopes. It's all good.

Great - that's what I needed to know.

Thanks so much :^)

Hi ediej,

My raised beds are 12" deep with Ok soil underneath.

I filled them with several layers of newspaper on the bottom, followed by a large bag of raked leaves (not oak) plus some semi decomposed material from the compost bin, then a mix of composted cow manure & topsoil.

The tomatoes were fabulous! Very productive & flavorful!

The main reasons to 'raise the bed' are better drainage and soil heating.

These are 6"-8"

Nice garden! Thanks for the input.