Protected Series:
Zone: 4DUKE HIGHBUSH BLUEBERRY
Vaccinium corymbosum 'Duke' is commonly referred to as Duke Highbush Blueberry or Blueberry 'Duke'. It is an upright, deciduous shrub with dark green leaves that turn showy orange and red in fall. It blooms late in the season so late spring frosts usually miss their mark on this selection. Waxy, bell-shaped white flowers in spring are followed by medium to large, firm blue blueberries in early summer. The blueberries are sweet and are enjoyed by both humans and wildlife. Blueberries are self-fertile, but do benefit from cross-pollination which provides a better, heavier harvest.
Duke Highbush Blueberry thrives in full sun in rich, fertile, acidic, evenly moist, well-drained soils. Prune as needed in late winter in the third year after planting for a better harvest. Ideal as a companion plant for Rhododendrons and Azaleas as all enjoy rich acidic soils.
| PLANT | SIZE | TYPE | GALENA | ADD'L | DIG | SOON |
| VACCINIUM COR DUKE | con 2 | 0 | 0 | 0 | 233 |
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To help this plant settle in and thrive, we recommend these standard planting practices: Plant in deep, moist, well-draining soil that is highly acidic, as this is critical for the long-term health and fruit production for blueberries. Select a location in full sun to partial shade, ensuring that the roots have access to consistent moisture throughout the growing season.
Prune in late winter or early spring to remove dead or weak wood and to thin out older branches, which encourages new, vigorous growth and maintains a productive size. Apply a generous layer of acidic organic mulch, such as pine bark or pine needles, around the root zone to conserve moisture and maintain soil acidity, taking care to keep the material a few inches away from the crown to prevent stem rot.
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