Clusters of delectable fruit make Duke easy to pick. It's the earliest blueberry to ripen, yet the blossoms not susceptible to frost damage. An attractive shrub is a good candidate for edible landscaping. Blueberry plants require pollination from at least one other blueberry variety; plant several varieties for improved fruit set and long harvest.
Plant blueberry plants in a sunny to partially shaded area, in a well-drained, very acidic soil, with a pH of 4.2-5.2. Plant at least two different varieties for cross pollination. Set blueberry plants 4-8 feet apart (3 feet apart for hedges).
As fruit ripens, cover blueberry plants with netting to deter birds. Pick fruit promptly to discourage insects.