Dang Tammy...how big is your backyard? Jackson must be lovin' all the space to play in.
That's so awsome that you have all that space and mature trees to start with. We just gutted our backyard, but alas, it's foggy most of the time in my neck of the woods, so we're thinking stone or concrete...something low maintence.
How about orchids? Oh, and don't forget herbs too (basil, rosemary, thyme)!