Duke is a well-known early-season northern highbush blueberry variety. It is widely grown commercially because of its reliable production, attractive fruit, and relatively good firmness.

• Type: Northern highbush (Vaccinium corymbosum)

• Fruit: Medium to large, light-to-medium blue berries with good bloom

• Flavour: Mild, sweet-tart flavour; flavour generally improves after the berries fully ripen

• Firmness: Good firmness and good shelf life

• Harvest: Early season

• Plant: Upright, vigorous growth with good productivity

• Chill requirement: Relatively high, so it is better suited to cooler regions with sufficient winter chill

• Uses: Fresh market, packing, processing, and farm sales

• Pollination: Cross-pollination with another compatible blueberry variety can improve fruit set and yield.