New bush cherries - ok in PNW?
I've always wanted a cherry tree to eat from fresh, but don't have the space. Recently I came across some new varieties of sour cherry that are sweet and SMALL, growing as a bush: bred at the University of Saskatchewan, http://www.fruit.usask.ca/dwarfsourcherries.html
. I'd lean towards Carmine Jewel because apparently it has more ornamental value and I'd be planting it as a part of my front yard side hedge.
My one concern is that I've heard sour cherries need cold to do well. On one site I saw the range as up to zone 8 , and here at the southern tip of mild Victoria BC I'm 9a.
Also, these varieties are self-fertile but bear better with a pollinator. I only have space for one---will the yield be poor enough to not bother? And if I could squeeze two in, hows the taste of Nanking cherries fresh?
Anybody had experience with these new varieties? Or failing that, have experience with sour cherries in the PNW?
Should I abandon my cherry fantasies or not...