Source for Tulip Poplar or Willow Oak near Silver Spring
My lovely Japanese maple is basically dead, and I'd like to plant something that will become really tall with time, and provide shade for our small two-story house. The two trees I'm thinking of are a tulip poplar (which would probably be my first choice but which I understand is hard to find in a large-sized tree) and a willow oak. I'm willing to spend a bit on these trees to get a good-sized tree so that I have the benefit a few years earlier sooner than if I buy something in a five-gallon pot.
Any tips on good suppliers for these varieties in the Silver Spring area would be much appreciated.