Amelanchier alnifolia, the Saskatoon berry, aka Juneberry, produces exceptionally large clusters of  juicy, dark purple coloured berries. Very tasty flavour, fresh and juicy!
Can be cooked into all of your favourites at home including: Jam, curds, ice cream, crumble, pies, muffins and chutneys.
Very high in anti-oxidants and their nutritional value is well documented.
A compact bush with high productivity.
Harvest in early summer.
 
Beautiful clusters of white flowers in the spring and orange/red leaves in the autumn. 
Saskatoons are adaptable to most soil types with exception of poorly drained or heavy clay soils lacking organic matter. Shallow soils should be avoided, especially if the water table is high or erratic.  Winter hardiness is exceptional, but frost can damage blooms as late as May. 
Can be planted in full sun or partial shade location.
Their first crop is usually seen after two years of planting.
If you would like to eat the fruits yourself, don't forget to cover the plant to stop the birds getting them!