Alpine Blueberry, Cascade bilberry
Vaccinium deliciosum
Family: Ericaceae
What it is like
Vaccinium deliciosum is a deciduous Shrub growing to 0.3 m (1ft). See above for USDA hardiness. It is hardy to UK zone 6. It is in flower from May to June. The species is hermaphrodite (has both male and female organs) and is pollinated by Insects. Suitable for: light (sandy) and medium (loamy) soils and prefers well-drained soil. Suitable pH: mildly acid soils and can grow in very acid soils. It can grow in semi-shade (light woodland) or no shade. It prefers moist soil.
Height (m): 0.3
Where it is found
Montane regions.
Western N. America - Washington and Oregon.
Conservation Status:
Countries/locations it is found in
Canada, North America*, USA,
How it is used
Food
Rating: 3
Fruit - raw or cooked. When fully ripe it is sugary sweet with a delightful aroma and a full rich flavour. Best eaten out of hand, the fruit can also be dried for later use. The fruit is about 6mm in diameter.
Medicine
Rating: 0
Other
Rating: 0
How it is grown
Requires a moist but freely-draining lime free soil, preferring one that is rich in peat or a light loamy soil with added leaf-mould. Prefers a very acid soil with a pH in the range of 4.5 to 6, plants soon become chlorotic when lime is present. Succeeds in full sun or light shade though it fruits better in a sunny position. Requires shelter from strong winds. Grows well in a moist position in a rock garden. Plants spread rapidly when growing in a suitable position. Dislikes root disturbance, plants are best grown in pots until being planted out in their permanent positions. This species is closely allied to V. caespitosum. Plants in this genus are notably resistant to honey fungus.
Propagating it: Seed - sow late winter in a greenhouse in a lime-free potting mix and only just cover the seed. Stored seed might require a period of up to 3 months cold stratification. Another report says that it is best to sow the seed in a greenhouse as soon as it is ripe. Once they are about 5cm tall, prick the seedlings out into individual pots and grow them on in a lightly shaded position in the greenhouse for at least their first winter. Plant them out into their permanent positions in late spring or early summer, after the last expected frosts. Cuttings of half-ripe wood, 5 - 8cm with a heel, August in a frame. Slow and difficult. Layering in late summer or early autumn. Another report says that spring is the best time to layer. Takes 18 months. Division of suckers in spring or early autumn.
Best place to grow: Woodland Garden Sunny Edge; Cultivated Beds;
Habit: Shrub
Hardiness: 5-9
Growth:
Soil: Light (sandy), medium
Shade: Semi-shade, no shade
Moisture: Moist