Can anyone offers some ideas I have a ground level part of my garden that raises into a steep hill. My neighbours have designed their garden to turn the hill into a flat platform, which is fine and from the height look directly down into my garden. I can't describe it well but I'd like to plant some plants or trees along the fence. Fence is about 7 foot and we have put a trellis on top but it's still really exposed. Any ideas for how to create some privacy. I thought some raised planters to add initial heights? Also low maintenence...