I forgot to say that our Saskatoon bush produced about 15 berries this year (last year only 2). I bought a plant from Johnstoa.com a few years back and although I have slightly neglected it, it has continued to grow and, yes, this year has produced some lovely tasting berries - very sweet and juicy. The plants originated from Canada I think and are used to harsh conditions.
The berries are a pretty blue-black. I meant to take a photo but we ate them to cheer me up after slicing my heel!