Sorbus
Rowan · also Mountain-ash, Whitebeam, Service tree
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Sorbus is a genus of over 100 species of deciduous trees and shrubs in the rose family. Species feature glossy, toothed leaves that often turn golden and orange in fall, with clusters of creamy-white flowers in spring followed by orange to scarlet berry-like fruits popular with birds. Some species are sensitive to urban conditions but can be smog tolerant, thriving in moderate moisture and well-drained soils.
Where it grows
Trees in each city's inventory, with the share of that city's named trees this species accounts for.
- 7,7040.68%—1.9 in
- 1,9760.41%—8.7 in
- 8540.12%—5.9 in
- 5960.81%9.8 yr5.9 in
- 3830.13%—5.1 in
- 3170.10%—2.4 in
- 3140.38%—3.9 in
- 1720.35%8.8 yr2.4 in
- 1600.03%—2.4 in
- 1470.09%—7.9 in
- 1320.05%4.8 yr16 in
- 1310.18%—3.5 in
- 990.02%18 yr5.4 in
- 920.79%—3.9 in
- 810.02%21 yr4.7 in
- 580.03%—3.5 in
- 490.03%—11 in
- 260.01%—3.0 in
- 140.02%—4.7 in
- 40.01%—5.1 in
- 40.01%—8.1 in
- 10.00%—7.9 in
Traits
- Foliage
- Deciduous
- Mature height
- 25–50 ft
- Canopy spread
- 15–30 ft
- Growth rate
- Fast
- Sun
- Full sun, Part shade
- Soil
- Well-drained
- Water needs
- Moderate
- Drought tolerance
- Moderate
- Pollution tolerance
- Moderate
- Wildlife value
- High
- Blooms
- May, Jun
Trunk diameters across every city: median 3.1 in, mean 5.0 in, 90th percentile 12 in. Measured at breast height, as published by each inventory.
Native range
Terrestrial ecoregions where this species is native. Trees in the dataset mostly stand well outside it.
Temperate Broadleaf & Mixed Forests
- Balkan mixed forests
- Caucasus mixed forests
- Northeast China Plain deciduous forests
- Southern Korea evergreen forests
- Western European broadleaf forests
Temperate Conifer Forests
- Northern Anatolian conifer and deciduous forests
Mediterranean Forests, Woodlands & Scrub
- Northeast Spain and Southern France Mediterranean forests
Other Sorbus in the catalogue
21 of the top 2,000 species are in this genus.
