Plant Profile: Vaccinium corymbosum

The Highbush Blueberry belongs to the Ericaceae family and typically reaches heights of 8 to 15 feet. This upright, multi-stemmed shrub is a slow grower and showcases stunning foliage in the fall. It naturally thrives in environments such as bogs, swamps, and elevated forests. Gardeners often cultivate it for its tasty fruit and vibrant autumn colors. While blueberries can self-pollinate, planting several varieties that bloom simultaneously can enhance berry size and overall yield. To extend your harvest, consider incorporating early, mid, and late-season blueberry varieties, allowing for fruit production from June through mid-September. In the first year after planting, it’s advisable to remove all flowers to encourage the shrub's root and shoot development. By the third year, you can prune during late winter to eliminate dead wood and shape the plant. Blueberries prefer a more acidic soil pH compared to many other fruit crops, so it’s beneficial to plant them alongside other acid-loving species like hollies, azaleas, rhododendrons, and camellias. Conducting a soil test before planting is recommended, as the optimal pH for blueberries ranges from 4.0 to 5.0, or up to 5.5 depending on the specific cultivar. Minimal annual maintenance is needed, aside from occasional pruning.

**Fire Risk:** This plant has a low flammability rating.

**Insects, Diseases, and Other Issues:** The fruit may be susceptible to the spotted wing drosophila. While disease occurrences are rare, potential issues include stem blight, root rot, anthracnose, cane cankers, mildew, and botrytis. Mummy berry, a fungal disease, can cause berries to shrivel and fall prematurely. Birds are fond of the fruit, so it’s wise to cover the shrubs with netting as they ripen. Additionally, deer often pose a threat to these plants. If the soil pH is excessively high, it can lead to chlorosis, characterized by yellowing leaves.

For further details on Vaccinium, please refer to additional resources.