Betula grossa
Japanese Cherry Birch
Family |
Betulaceae |
Genus |
Betula |
Species |
grossa |
Category |
Woody |
Type |
Tree (deciduous) |
USDA Hardiness Zone |
4 - 6 |
Canadian Hardiness Zone |
5 - 7 |
RHS Hardiness Zone |
H7 |
Temperature (°C) |
-26 |
Temperature (°F) |
-15 |
Height |
6-7 m |
Spread |
6-9 m |
General Description |
This birch is a deciduous tree with year-round interest from its light, curly exfoliating bark, deep green leaves in the summer, warm yellow leaves in autumn and the tree's remarkable winter silhouette. |
Landscape |
Urban landscape. |
Cultivation |
Well-drained, moist soil. Types of soils are sand, clay and loam. Needs partial to full sun and slightly acidic soils (pH 5.0 - 6.5). |
Shape |
Spreading open crown upon maturity. |
Growth |
Medium |
ID Characteristic |
Long catkins that are dark yellow in colour. Short petiole (1.25 - 2.5 cm long) and thin, curly paper bark. |
Pests |
Bronze birch borer. |
Habitat |
Mountain valleys of Japan. |
Bark/Stem Description |
Redish-brown exterior and soft cherry pink underlay. Light curly paper texture that coarsens with age. |
Flower/Leaf Bud Description |
Medium sized buds featuring about 5 silky scales on each. Pigment ranges from green to brown. |
Leaf Description |
8 cm long and about 4 cm wide. Ovate blade form with short double toothed edges. About 10 to 15 veins in pairs. The simple leaf arrangement is alternate. |
Flower Description |
Male and female catkins that are long and yellow-brown in colour. |
Colour Description |
Medium brown bark with a light cherry pink underlay. Wintergreen stems that hold onto yellowish-brown catkins and dark green leaves that turn yellow in autumn. |
Notable Specimens |
The Arnold Arboretum, Harvard University, Jamaica Plains, Massachusetts, United States of America. |