Duke Blueberry

Height: 4’-6’, but can be kept smaller with some pruning.
Minimum temperature: Hardy to -20f to -30f.
USDA zone: 4-11.  .
Light: Full to part sun.
Fruit: Medium to large blue.
Bearing age: 2-3 years.
Pollination requirements: It is self pollinating but does better with another blueberry nearby.
Ripens: July-August.

Cannot ship to GA, MI, WA, HI

Planting Guide for Blueberries

Plant Description:
Blueberries (Vaccinium spp.) are deciduous shrubs belonging to the Ericaceae family. They are known for their delicious and nutritious berries, which are typically small, round, and vary in color from blue to purple-black, depending on the variety. Blueberry bushes feature ovate leaves that turn vibrant shades of red and yellow in the fall.

Size and Height of Plant:
Blueberry bushes come in various sizes, ranging from compact varieties around 2 feet tall to larger bushes that can reach heights of 6 feet or more.

Fruit Description:
Blueberries produce clusters of small, round berries with a sweet and tangy flavor. The time of ripening depends on the variety, with some ripening in early summer and others in late summer to early fall.

Bearing Age:
Blueberry bushes typically start bearing fruit in their second or third year after planting. The yield increases as the plant matures, reaching full production around the fourth year.

USDA Hardiness Zone:
Blueberries are hardy in USDA Zones 3-7, but specific varieties may have different zone requirements.

Site Selection:
Choose a planting site with full sun exposure for optimal fruit production. Blueberries prefer well-drained soil and slightly acidic conditions (pH 4.5-5.5). Ensure good air circulation to reduce the risk of diseases.

Soil:
Blueberries thrive in acidic, well-draining soil. Amend the soil with organic matter like peat moss or compost to improve fertility and drainage.

Pest and Diseases:
Common pests include birds, aphids, and spider mites. Diseases like powdery mildew and mummy berry can also affect blueberries. Use bird netting to protect fruit, and employ organic or chemical controls as needed.

Spacing:
Plant blueberries 4 to 6 feet apart to allow for proper air circulation and future growth. Rows should be spaced 8 to 10 feet apart.

Planting:
Plant blueberries in early spring or late fall when the soil is workable. Dig a hole twice the size of the root ball, and place the plant at the same depth it was in the container. Backfill with amended soil, water thoroughly, and apply a layer of mulch around the base.

Watering:
Blueberries require consistent moisture. Keep the soil evenly moist, especially during dry periods. Mulching helps retain soil moisture and prevents weed competition.

Fertilizer (Organic or Inorganic):
Fertilize blueberries in early spring with a balanced, slow-release fertilizer. Use an acidic fertilizer specifically formulated for blueberries. Organic options include well-rotted compost, pine needle mulch, or coffee grounds.

Pollination:
Blueberries are self-pollinating, but planting more than one variety can improve fruit set. Bees and other pollinators also contribute to successful pollination.

Harvest and Storage:
Harvest blueberries when they are fully ripe and easily detach from the stem. The timing varies by variety. Store fresh blueberries in the refrigerator for up to two weeks. Consider freezing for longer storage.

Care by Season:
Spring: Prune dead or damaged branches and apply fertilizer.
Summer: Monitor for pests and diseases; provide adequate water.
Fall: Mulch to protect roots from temperature extremes.
Winter: Consider covering bushes with burlap in colder climates.