| Scientific Name: | Oxydendrum arboreum |
| Common Name: | sorrel tree, sourwood |
| Family Name: | Ericaceae |
| Origin: | U.S. - northwest |
| Hardiness Zone: | Zone 6: (-23 to -18 °C) |
| Plant Type: | Tree - deciduous |
| Mature Size: | 10 - 15m x 7 - 10m (height x width) |
| Habit: | Arching |
| Form: | Columnar, Pyramidal - narrowly |
| Texture: | Medium - coarse |
| Landscape Uses: | Attract beneficial insects, Specimen plant, Summer interest, Woodland margin |
| Exposure: | Full sun, Part sun/part shade, Sheltered |
| Soil or Media: | Acidic, Humus rich, Well-drained |
| Leaves: | Simple, Alternate, Soft flexible, Pinnate venation, Pubescent, Elliptic, Oblong, Serrulate |
| Flowers: | Panicle, White, Jul-Aug |
| Fruit: | Capsule, Brown, Oct, (Persistent) |
| Key ID Features: | |
| Leaves elliptic-oblong, most 10-15cm long x 3-5cm wide; emerge red and then red again in fall; flowers creamy-white in panicles, Jul-Aug; capsules numerous, ~6mm long on 5mm long pedicel. Winter ID: persistent fruit (drooping woody capsules). | |