Western Serviceberry or Saskatoon Berry is a deciduous shrub that grows to 20'. Its fruit is a small purple berry, ripening in early summer in the coastal areas and late summer further inland. Resembling blueberries, it has a waxy bloom. Also similar in composition to blueberries, saskatoons have total polyphenol content of 452 milligrams per 100 grams. Quercetin, cyanidin, delphinidin, pelargonidin, petunidin, peonidin, and malvidin were present in Saskatoon berries.