Richard, let me finish digging to the size I need first. Then I'll fill with water. I wanted to include some cannas along with three bananas in 10-gallon containers. The French drain sounds great. I have rock that I could use that I got out of the hole.
mskitty, what did you do with all that you dug out? I hate to throw it away. I don't need gravel and clay in the yard. LOL!!!
