Vaccinium corymbosum (F)

Other common names

American blueberry, highbush blueberry, swamp blueberry, tall blueberry

Fruit Edible Shrubs

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A bushy deciduous shrub to 1.5m tall, with mid-green leaves turning red and purple in autumn. Sprays of small, white or pink urn-shaped flowers in spring are followed by edible, blue-black berries 12mm wide

Position

Full sun, Partial shade

Soil Types

Loam, Sand

Max Height

1-1.5 metres

Max Spread

1-1.5 metres

Size

Time to Maturity: 10–20 years
Max Spread: 1-1.5 metres
Max Height: 1-1.5 metres

Growing Conditions

Loam Sand

Moisture: Moist but well–drained
pH: Acid

Position

Full sun Partial shade

Aspect: South–facing or East–facing or West–facing
Exposure: Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

H1A: under glass all year (>15C)
H1B: can be grown outside in the summer (10 - 15)
H1C: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20): H6

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Ericaceae
Native to GB/Ireland: No
Foliage: Deciduous
Habit: Bushy
Genus: Vaccinium can be evergreen or deciduous shrubs or small trees, with simple leaves and small, bell- or urn-shaped flowers followed by juicy, sometimes edible berries
Name Status: Correct
Horticultural Group

Horticultural Classification Codes

Horticultural Classification Codes are often given to genera which have a large number of species or cultivars. They are used to categorise cultivated plants based on specific, shared characteristics such as shape, colour, size or flowering time, and can be displayed as letters or numbers

For example:
Dahlia ‘Sunset Kate (Sin) = Single flower
Rosa ‘Marigold’ (HT) = Hybrid Tea: This genus produces fruit, but not necessarily edible fruit
Plant Range: Eastern N America

How to Grow

Cultivation

Plant in a sheltered site in well-drained, moisture-retentive, acidic soil, (pH 4.5-5.5) in sun or part shade. Alternatively grow in containers or raised beds filled with peat-free, ericaceous compost . Pot grown plants benefit from winter protection. For optimal pollination and yield plant three different cultivars. See blueberry cultivation for further advice

Propagation

Take 10-15cm (4-6in) softwood cuttings in late spring or semi-ripe cuttings in early summer

Suggested planting locations and garden types

Cottage and informal garden
Wildlife gardens
Flower borders and beds
Edible fruit

Pruning

More mature plants benefit from regular pruning, see pruning blueberries

Pests

May be susceptible to vine weevil, especially if container grown

Diseases

May be susceptible to honey fungus (rarely), powdery mildews, root rot and chlorosis due to iron and manganese deficiency; see nutrient deficiencies