Lonicera caerulea 4-6' × same. Also called Haskap. Nutritious delicious berries ripen early with the strawberries. Productive, low maintenance, very hardy. Z2.
Gaylussacia baccata 1-3' × 2-4'. Cousin of the blueberry. Less acidic, more mildly sweet flavor. Flowers in June, fruits in August. Full sun to part shade but fruits best in sun. Native to eastern U.S. and Canada. Z3/4.