Alnus japonica (Japanese Alder)
Botanical Information
| Family | Betulaceae |
| Genus | Alnus |
| Species | japonica |
| Type | Tree (deciduous) |
| Origin | Japan, China, Korea and Manchuria. |
Details
| USDA Hardiness Zone | 5 - 7 |
| USDA Hardiness Ref. | |
| Canadian Hardiness Zone | 4a - 7a |
| Canada Hardiness Ref. | |
| RHS Hardiness Zone | H7 - H5 |
| RHS Hardiness Ref. | |
| Temperature (°C) | (-26) - (-12) |
| Temperature (°F) | (-15) - 10 |
| Height | 12-18 m |
| Spread | 9-15 m |
| Flowering Period | March |
Description and Growing Information
| General Description | This tree has been added to the IUCN Red List as least concern. |
| Shape | Conical to pyramidal. |
| Landscape | Woodland areas. |
| Cultivation | Medium to wet soils in full sun to partial shade, thrives in cool climates. |
| Habitat | Forests, stream banks, swamps and roadsides. |
| Leaf Description | Narrow ovate to elliptic, dark green leaves with a light green underside, 13 cm in length. |