Highbush Cranberry (viburnum trilobum) - 3 Gallon Potted ShrubHighbush cranberries are native across Canada and the northern United States. The shrub develops a dense rounded form, and can reach heights of 4. 5 metres (15 ft) with similar spreads. It is moderately vigorous, with a growth rate of about 1 meter (3 feet) per year. The leaves are dark green with a three lobed form, somewhat similar to maples, and turn yellow to purplish red in fall. The shrub produces abundant flowers in the month of June. The