I knew as soon as I seen this, that is was a neighbor issue, been there done that, I mentioned forsythia to you on another thread, but now that I see this I wanted to add that you ought to plant rose bushes in a row, the ones that have the largest thorns you can find, in case he tries to come any closer. we had a guy that lives diagonal from us that was standing outside of his door with a video camera, DH sees him while he was messing in the fridge (keep in mind we have a giant white pine tree, that is over our kitchen window) DH from the fridge, starts bobbing and weaving to try to see through the tree at this guy to see what he is doing and he jumped back in the house with the camera, now isn't that spooky? I hate to keep the sun out of my house, but I really think mini blinds are the best thing invented, and they are inexpensive.

FYI: bamboo + pond = dead fish once the bamboo punctures the liner

Check out the link below as a start. You can find types that will grow in MD without spreading. In our zones sometimes the running kinds will take on more of a clumping habit, and sometimes they do take off quickly. To my knowledge there aren't any clumpers that will get through winter without damage that have nice sizable culms. If you want something that will stay put take a look at the type called fargesia. Here is a link that might be useful: American Bamboo Society

Western sword fern grows very fast, if it has the right conditions. But, I think it has to be in the west, but GA is hot so I think many other ferns would be fast growing in your area. Look for hardy outdoor ferns and not wimpy house plant ferns.