Hydrangea arborescens
Smooth Hydrangea, Wild Hydrangea, Sevenbark
| Family |
| Hydrangeaceae |
| Genus |
| Hydrangea |
| Species |
| arborescens |
| Category |
| Woody |
| Type |
| Shrub (deciduous) |
| Pronunciation |
| USDA Hardiness Zone |
| 3-9 |
| Canadian Hardiness Zone |
| 4 |
| RHS Hardiness Zone |
| H3-H7 |
| Temperature (°C) |
| -40- (-1.1) |
| Temperature (°F) |
| -30-40 |
| Height |
| 0.5-1.5 m |
| Spread |
| 0.5-1.5 m |
| Landscape |
| Used well as mass planting, woodland garden or background. |
| Cultivation |
| Very tolerant plant, grows in a variety of soils with full sun to filtered shade. |
| Shape |
| Low growing, round. |
| Growth |
| Fast |
| Habitat |
| Naturally found in moist soils, under forest canopies, along woodland banks and streams. |
| Bark/Stem Description |
| The stem bark has a peculiar tendency to peel off in several successive thin layers with different colours, hence the common name "sevenbark". |
| Leaf Description |
| The leaves of smooth hydrangea are large, 8-18 cm long, opposite, serrated, ovate, and deciduous. The lower leaf surface is glabrous or with inconspicuous fine hairs, appearing green; trichomes of the lower surface are restricted to the midrib and ma |
| Flower Description |
| The inflorescence of smooth hydrangea is a corymb. The showy, sterile flowers are usually absent or if present they are usually less than 1 cm in diameter. |
| Fruit Description |
| Fruit is a ribbed brown capsule about 2 mm long; many are produced. |
| Propagation |
| Propagated by seed, stem cuttings or crown division in early spring. |