Nice List of Non-Invasive Plants

I like this list of non-invasive plants of the Potomac River Watershed. Unfortunately it's in pdf, which is always a bit of a pain. The idea is to print it out and take it to the nursery to make sure you don't get something that's going to take over the world, like wintercreeper, which is a great name but not such a great plant for my area. http://www.nature.org/wherewework/northamerica/states/maryland/files/mdinvasives_final_card.pdf

I have some Japanese trees at my new house. Two Japanese maples, with beautiful red leaves, and a Japanese Dogwood. I also have a Japanese dog, an Akita. Invading all around.