Betula pubescens Ehrh.
Betula pubescens, commonly known as white birch, downy birch, is a shrub.
Betula pubescens was described by Jakob Friedrich Ehrhart in 1791. The name is considered as validly published.
The shrubs reach heights of 18 to 20 metres. The plants reach a width of 8 to 15 metres.
Wood and Bark
The bark is silver-grey.
Betula pubescens is deciduous. The dark-green, simple leaves are alternate. They are rhomboid with dentate margins. They turn an attractive yellow in autumn.
Flowers and Fruits
Betula pubescens produces yellow flowers in March. The plants are dioecious, pollination takes places by allogamy through the wind.
The shrubs produce samaras.
Betula pubescens is native to the whole of Europe, the Caucasus, West-Siberia and East Siberia.
The shrubs prefer a sunny to half-shady situation on moist to wet soil. The substrate should be gritty loam with a pH between 6,5 and 7,5. They tolerate temperatures below -45Â°C (USDA zone 1). The plants are suited for the shores areas of and in natural standing bodies of water.
Suited for noise and dust protection, as well as suited as avenue tree, slope plant and as bee pasture.
Maintenance and Propagation
Pests and Diseases
- Walter Erhardt, Erich GÃ¶tz, Nils BÃ¶deker, Siegmund Seybold: Der groÃe Zander. Eugen Ulmer KG, Stuttgart 2008, ISBN 978-3-8001-5406-7. (Ger.)
- Christoper Brickell (Editor-in-chief): RHS A-Z Encyclopedia of Garden Plants. Third edition. Dorling Kindersley, London 2003, ISBN 0-7513-3738-2.