European Hornbeam
Carpinus betulus
Betulaceae · broadleaf deciduous tree · introduced
Last updated
European hornbeam is the cleanest, lowest-maintenance shade tree available for the Puget Sound lowlands. Zero diseases and zero pests are documented in our system, which is almost unheard of for a tree in this region. The tree tolerates the full range of lowland soils from glacial till to alluvial clay, handles urban conditions, takes hard pruning for hedging, and develops an attractive smooth gray bark. Growth is slow to moderate, which is a virtue for urban lots. 'Fastigiata' is the standard upright cultivar for street and formal plantings. The shallow root system means mowing right up to the trunk is possible. Fall color is yellow to orange-brown and the marcescent leaves often persist through winter on hedged plants, providing year-round screening. For a shade tree or hedge where disease management is not something you want to think about, hornbeam is the answer.
— Chris Welch, ISA Certified Arborist
European hornbeam (Carpinus betulus, Betulaceae) is a moderate-growing deciduous tree from Europe and Asia Minor, reaching about 50 feet tall. It develops a fluted, often crooked trunk and a dense crown of dark green foliage that turns yellow in fall. Flowers appear in March with conspicuous three-lobed green bracts that mature to yellow-brown. The tree responds exceptionally well to hard pruning, making it a premier hedging and screening species.
European hornbeam grows in sun to part shade on adaptable, preferably well-drained soils, hardy in Zones 4a to 8b. Moisture needs are moderate and maintenance requirements are low to moderate. No serious pest or disease issues are typically documented. Cultivars include 'Fastigiata' (pyramidal, 30 to 50 feet), 'Emerald Avenue' (40 feet), and 'Frans Fontaine.' The species has a long history as a formal hedge plant and street tree across Europe.