Ok, I have finally reclaimed part of my backyard from dogs and kids. The dogs managed to pack the dirt around the trees and now roots are exposed! I have another tree that has just started pushing up it's roots for the last two years. The problem is that the roots are high enough to get hit by the lawn mower blade! I would like to build some kind of box/retainwall thingy to that I don't have to mow that area. I would love to fill about thingy with dirt so that I could grow some shade loving vegtables and flowers. Any ideas? Is this a good idea? If it is what veggies & "pretties" will grow in the shade? I am right on the border of Zond 4/5 in SD. Is this a bad idea? Why? I don't want to start an argument - just want to be smarter! Happy Holidays All!!!!!!!