- Borealis is one of the best tasting from the University of Saskatchewan breeding program. It is an excellent berry for fresh eating as well as jams and jellies and has good productivity. Early-mid blooming with heavy foliage on dome shaped bush. Grows 4’-5’ at maturity and is best for home gardeners who can hand pick the softer berries which are hidden by the foliage and low to the ground. Use honey Bee as a pollinizer.