it was faster to put this together than it was to pick up the materials: two 8' landscaping timbers, two 10' 2x4s, and a third concrete block in the middle for support. great idea, and it looks good, too.
Pleached/Woven Living Fence - use for livestock and can coppice/pollard for fodder, mulch, fire wood or crafts. (this would be grown on mounds adjacent to raised drystone path - keep walking off mounds)
A good article on coppicing and pollarding: two methods of wood pruning that allows us to continually harvest wood from the same trees while keeping them healthy for centuries. They produce a sustainable supply of timber for many generations while enhancing the natural state for wildlife and native plants.