Midcoast Maine, Bobert. I had lots of R. prinophyllum when I lived in NH, but we only moved one transplant that bloomed for the first time last year; I'd like to establish a good sweep of them here in our woodland gardens. Young plants from seed would likely be good, due to the genetic diversity. I'm interested in any hardy azalea/rhody sort of plant but especially R. prino'.
I did find some intriguing plants at Eastern Plant Specialties, including Franklinia. I have a plant friend who thought he might have a few he could sell me this weekend at the FEDCO tree sale. I think I'll invest in an umbrella magnolia tree, too. I love magnolias.
Tomatoes, apples, anything of the sort I'd rather pinch off the early fruit on young plants and gain a healthy, more vigorous plant (as you said, SRS and Bobert.