Northsky is an excellent choice for very cold climates, as it can tolerate temperatures as low as –45 degrees F. The plant will reach approximately 2 feet in height and produce up to 2 lbs. of fruit per bush. Northsky blueberries mature in July, and the foliage turns a deep red in the autumn, providing beautiful seasonal color.
Capable of withstanding temperatures as cold as –35 degrees F, Northblue provides 3 to 9 lbs. of berries per bush, and grows approximately 3 feet in height. Berries are slightly larger in size than other dwarf varieties and fruit matures in mid-June.
Both varieties of dwarf blueberry plants are cold hardy to –30 degrees F. They reach approximately 4 feet in height and produce 3 to 10 lbs. of berries per bush. They are often planted together for cross-pollination purposes. Polaris is an early ripening variety recognized for its intense flavor. Chippewa ripens early to mid-season, as noted by the Manitoba Agriculture, Food and Rural Initiatives and its berries are preferred for fresh eating.
Top Hat is an excellent dwarf blueberry choice for containers, as it reaches a height of only 18 inches, but produces up to 5 lbs. of small blueberries. It is cold hardy to –30 degrees F, and can be trained as a bonsai specimen.
Sunshine Blue dwarf blueberry plants are suited to slightly warmer weather and are able to tolerate cold temperatures only as low as –20 degrees F. Sunshine Blue will reach between 3 and 4 feet tall, and provides unique color because it has hot pink blossoms rather than the white blossoms found on most other blueberry plants. These small bushes produce 5 to 10 pounds of fruit per bush.
DeSoto is a semi-dwarf blueberry that was developed specifically to tolerate the high heat and humidity conditions of the mid-Southern United States, according to the USDA Agriculture Research Service. DeSoto also ripens later than other cultivars, extending the picking season by up to three weeks. Plants will reach almost 6 feet tall and produce medium to large fruit.