Betula ermanii
Erman's Birch, Gold Birch, Russian Rock Birch
Family |
Betulaceae |
Genus |
Betula |
Species |
ermanii |
Category |
Woody |
Type |
Tree (deciduous) |
Pronunciation |
USDA Hardiness Zone |
3 |
Canadian Hardiness Zone |
1 |
RHS Hardiness Zone |
H7 |
Temperature (°C) |
-40 - (-35) |
Temperature (°F) |
-40 - (-30) |
Height |
20 m |
Landscape |
An excellent specimen tree. |
Cultivation |
Very hardy, but prefers a deep, well-draining loam soil. |
Shape |
Open, wide-spreading crown. |
Pests |
Prone to attack by several bracket fungi, as well as mildew and birch rust. |
Bark/Stem Description |
Bark is peeling, tinged yellow, to white. Young branches are orange-brown to purple-brown. |
Flower/Leaf Bud Description |
Buds are slender-pointed to 1 cm. |
Leaf Description |
Leaves are dark green above with scattered glands throughout, with veins in 7-11 pairs, growing to 5-10 x 4-7 cm. |
Fruit Description |
Catkins to 2-3 x 1-1.5 cm, fruiting scales having oblong tips. Nutlets are to 2-3 mm, minutely pubescent, with narrow wings. |
Propagation |
Propagate by seed, with light present for germination, although seeds may not come true. Can also be propagated through side-veneer grafts in late winter. |