I agree with the locality part. I'm just starting to plan for landscaping my yard, and I'd love to be able to put in my area so I could browse plants that grow well here.

I know next to nothing about this stuff, except that to have someone else do it is expensive, so it would be great to have a site to make DIY easy, along with the option to go ahead and order my plants without having to visit the nursery (of which, there are strangely very many within 2 miles of me).