My nursery buys most of our bonsai from them, a lot of smaller specimens in bonsai pots but we get a few larger bonsai from them also. We get a ton of our bonsai starters from them. They have a great selection, the male owner (forget his name) fills his van up and drives down to Richmond and we hand pick every plant, great guy!
I bought a small Trident in a 6 inch pot from my store (from Meehan's) this spring, it was about 10 inches tall this April. I've repotted twice this season already and it's at least 8 feet tall now! Very happy with it.
My sister moved to Frederick Maryland early this year and I went to visit her and was going to stop by their nursery, unfortunately they closed at 3pm and I missed out... Super bummed but I'll eventually make it up there.