VACCINIUM corymbosum BLUEBERRY Duke 3L
Duke is the most widely planted early ripening northern variety, a vigorous and highly productive variety with a bushy upright growth and attractive oval shaped leaves. Heavy, consistent yield with an attractive, light blue, high quality berry. The fruit is firm and has a good crunch when eaten fresh. Freezes well. Duke blooms late but ripens early which protects the blossoms from spring frosts. Branches may droop to the ground when laden with fruit and require the use a simple trellis as support. Stunning red/gold foliage in the autumn. Eventual height: 2m. Eventual spread: 1m. Cropping season: late June/July.
This plant is supplied in a 3L pot.
Plant 1.5m (5ft) apart in rows 2m (6ft) apart.
Plant in an open sunny spot in a moist acid, but well-drained soil. Can also be successfully grown in pots with ericaceous compost.
Soak the root-ball before planting. Plant in a hole twice the diameter of the root-ball or pot. Mix an organic soil improver and general fertiliser with the infill soil. Water regularly with lime-free water until established.
Thin out dense bushes by reducing branches by one-third every 2-3 years in winter. Apply a general fertiliser in spring.