Deb, the winds seem to come from the South West most of the time so that corner would be well protected from the wind. And boy, do we get wind! I always look at plants a zone beyond whats safe here. Over the years I think I've had more good than bad luck keeping them alive. And with the corner being in a well protected spot I'm pretty confident zone 5 would work. I'd like to think even zone 6 would work but factoring in the temperature for z6 I'm not so sure its workable.
I will definitely check out your suggestions, Thank you so much.
Bob, I will check out the Japanese Kerria and the website. The Serviceberry, however, I hate! They grew wild at my last place and they were a real pain in the butt!