Scientific Name: Betula pendula
Common Name: European white birch, silver birch
Family Name: Betulaceae
Origin: Europe
Hardiness Zone: Zone 2: (-46 to -40 °C)
Plant Type: Invasive plant, Tree - deciduous
Mature Size: 22 - 30m x 7 - 10m (height x width)
Habit: Upright
Form: Oval - vertical
Texture: Medium - fine
Landscape Uses: Shade tree, Street (boulevard tree)
Exposure: Full sun, Part sun/part shade, Filtered shade
Soil or Media: Well-drained
Leaves: Simple, Alternate, Soft flexible, Pinnate venation, Glabrous, Ovate, Dentate, Double serrate, Serrate
Flowers: Catkin (ament), Yellow, Brown, Apr-May
Fruit: Nut, Samara, Brown, Aug-Sep-Oct, (Persistent)
Key ID Features:
Arching, pendulous branches; leaves deltoid to ovate, most blades 5-7cm long x 4-5cm wide; margins dentate-serrate; male catkins narrow, 3-6cm long, female catkins 1.5-3.5 cm long, bright green turning yellow, swollen flaky brown when mature. Winter ID: catkins persistent; branches weeping or branch tips often drooping; bark smooth then exfoliating with age, grayish-white with dark gray to black horizontal lenticels becoming larger spots; branch bark ridge long, almost black; 1-3 immature terminal male catkins.