Many varieties of fruiting trees and shrubs are suitable for the Calgary area. Apples, sour cherries, saskatoons, Nanking cherry, and raspberries top the most reliable list. Saskatoon pie from your own garden cannot be beat. Other options like pear or apricot are hit and miss being early bloomers. The bloom times are critical for availability of pollinators or late frosts. Harsh winter temperatures can hill the flower buds on any give year in the less hardy varieties. Despite its challenges this is a worthy objective and most have excellent ornamental value as well.
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There are many perennial plants with edible traits as well such as Lovage, Rhubarb, Asparagus, Mint, Sage, and Thyme to name a few.