Blueberries are well-shaped, upright and vigorous plants with dark green foliage. In addition to the berries, blueberries are beautiful ornamental, native shrubs with spring flowers and fall color. They can be included in the landscape as either a single planting, hedge/border or in areas such as native gardens and woodlands. They also make nice container plants for a patio or deck. Blueberry plants are very hardy and long-lived. They prefer organically rich, medium to wet, well-drained acidic soils in full sun to part shade.
The Duke Blue Berry is an early season (May) Northern Highbrush variety. It is high yielding with medium to large berries are great for fresh eating. It is cold hardy to a USDA zone 4, -20f to -30f. The Duke Blueberry will grow to 4’-6’ high by 4’-6’ wide bush. It has white flowers and orange to crimson red fall foliage. Blueberries produce fruit when they are 2-3 years old and do better with a second variety planted nearby. Blue berries grow best in organic, well drained acid soil. They prefer full sun. Plant your blue berries 4’-8’ apart. The Duke needs 800-1000 chill hours.
Height: 4’-6’, but can be kept smaller with some pruning. Minimum temperature: Hardy to -20f to -30f. USDA zone: 4-11. Find your zone here. 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 blue berry nearby. Ripens: July-August.
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The last photo is an example of a 4" size Duke blueberry, however, it is not the exact plant that you will receive. Your plants will be approximately 1-2 years old and 1'-2' tall.