Cornus alba (Siberian Dogwood, Red-barked Dogwood or White Dogwood.)


Michael's Opinion

Hardy and easy to grow and maintain, this shrub is perfect for northern landscapes and gardens where its bright red stems add a distinct element of winter interest to the garden; best planted in mass as a feature of a shrub border.

Botanical Information

FamilyCornaceae
GenusCornus
Speciesalba
CategoryWoody
TypeShrub (deciduous)
OriginSiberia, northern China and Korea.

Details

USDA Hardiness Zone3a
USDA Hardiness Ref.
Canadian Hardiness Zone1a- 1b
Canada Hardiness Ref.
RHS Hardiness ZoneH7
RHS Hardiness Ref.
Temperature (°C)-39
Temperature (°F)-40
Height2-3 m
Spread2-3 m
GrowthMedium
Flowering PeriodApril, May, June

Description and Growing Information

General DescriptionAn upright deciduous shrub commonly used in woodland gardens, shrub borders and as a massing plant for winter interest.
ID CharacteristicBright red stems, with ovate, medium-green leaves and white flowers.
ShapeUpright, rounded vase shaped shrub.
LandscapeUseful for woodland gardens, informal hedging, wet or swampy areas, mixed hedges, winter interest and screening.
PropagationEasily from softwood cuttings struck in moist sand or perlite with bottom heat.
CultivationPlant in full to partial sun in mildly acidic, moist soils.
PestsMussel scale, aphids, dogwood blight and glass-house red spider mite.
Bark/Stem DescriptionThe bark is a bright, rich red and remains a contributing aesthetic factor in winter if the older stems are pruned (removed) towards the end of winter or early spring.
Flower/Leaf Bud DescriptionDark burgundy buds.
Leaf DescriptionNarrow, ovate leaves with acute apices, 4-12 cm in length. Autumn colour is usually red to burgundy.
Flower DescriptionSmall white aggregate flowers, from 2-5 cm, many of the blooms are lost within the dense foliage.
Fruit DescriptionOrbicular drupe, white and ranges from 1-2 cm in size.
Colour DescriptionThe bright red bark remains the same colour all year long, flowers and fruit are white while the foliage changes from medium-green in the spring and summer to red and burgundy in autumn..
Texture DescriptionMedium, doesn't change with age.

Photographs