I don't have any pix of my set-up, but the main reason I use the gravel is to create a mouse / vole-proof area around the trees. Jagged, sharp limestone gravel is cheap here and we buy it by the ton. We have it loaded onto a pick-up truck and drive it right to the planting spots. If you look at L2L's pix in post #2, we put 3" to 4" of limestone gravel all the way out to the edges of the landscape cloth or lumite - not just in the center. You don't see our landscape cloth when we're finished. It keeps the mice and voles away ( they can't / won't tunnel thru it ). The gravel, combined with aluminum window screen wraps have kept us free of any mouse / vole chewing our trees. We do get some weeds that germinate in the gravel, but we just carefully spot spray with gly. Once and done !!!