Sometimes raspberries grow a bit too well. We spent years pulling raspberry canes out of the yard, the back alley, the middle of the garage floor, the eavestroughs, etc. after growing raspberries for a few years. They also don't tend to be sweet unless they get a certain amount of direct sunlight.
Saskatoons are an excellent all-purpose fruit - you can make wine, mead (melomel), pies, cakes, juice, etc. from them - but they don't bear that many fruit for the first few years. They're also bird magnets, so if you want some fruit for yourself you have to chicken-wire them.
Most of the crabapple trees in Alberta and Saskatchewan were planted, or are decendants of trees that were planted, in the early 1950s. The variety of crabapple used by the nurseries at that time wasn't chosen for its taste but for its foliage and bloom and for its low price. They make pretty rough wines. If you don't use the fruit, it's important to rake it up as soon as it falls, especially if you have a dog. As the fruit ferments it becomes very appetizing but has unfortunate abdominal consequences. A drunk dog with diarrhea is just a heaping helping of fun, I can tell you.
I don't know if you can grow blackberries in Saskatoon. You can't grow them in Calgary, but then again we have the cold summer nights due to being high in albreastude. Check with Lindeman's Seeds in Winnipeg and see what they say - their staff seems to be very knowledgable about what can and cannot be grown on the Prairies.
wd41
