Oh, my, Rick! Thank you for such a long answer!
I dearly love black raspberries, and have not tasted one in well more than twenty years! Our coldest nights are about 68 degrees with day time temps in the low eighties. Many plants cannot take the long 'hot' nights, they don't get to rest. Tomatoes can be grown for about three months, in the winter. But then our boiling hottest summer days are around 95, with 85 degree nights.
I guess I will wait until my friend's newly imported plants, (absolutely tiny!!) do what they're going to do, well or badly. If I can find a wealthy codger to fund me, I'll build a refrigerated greenhouse! hahahahahaha!
Cheers,
Melissa