Quercus acuta (Japanese Evergreen Oak)
Botanical Information
| Family | Fagaceae |
| Genus | Quercus |
| Species | acuta |
| Synonyms | Cyclobalanopsis acuta |
| Category | Woody |
| Type | Tree (evergreen) |
| Origin | Native to Japan, South Korea, Taiwan, and parts of China. |
Details
| USDA Hardiness Zone | 9 - 11 |
| USDA Hardiness Ref. | |
| Canadian Hardiness Zone | Requires cold season protection under glass. |
| Canada Hardiness Ref. | |
| RHS Hardiness Zone | H4 - H1c |
| RHS Hardiness Ref. | |
| Temperature (°C) | (-10) - 10 |
| Temperature (°F) | 14 - 50 |
| Height | 6 - 9 m |
| Spread | 4 - 6 m |
| Growth | Slow |
Description and Growing Information
| Shape | Somewhat rounded crown. |
| Landscape | The dense growth and small size make Japanese Evergreen Oak ideal for use as a specimen, screen, or small shade tree. |
| Propagation | By seed. |
| Cultivation | Grows best in moist, fertile, well-drained soils in full sun to part shade. |
| Notable Specimens | Caerhays Castle, Goran, Cornwall, United Kingdom. |
| Habitat | Moist forests and ravines. |
| Bark/Stem Description | Dense, low branching and smooth multiple trunks with grey bark. |
| Leaf Description | Dark green, glossy leaves, 7 - 15 cm long, have wavy-margins and a paler underside. New growth is purplish-brown. |
| Flower Description | Oval shaped buds to about 7 mm, dark brown to reddish brown in colour. |
| Fruit Description | A squat acorn (3 cm) often solitary or in pairs and takes two years to reach maturity. |
| Texture Description | Medium. |
Photographs
Quercus acuta, form, Caerhays Castle, Goran, Cornwall, United Kingdom.
Quercus acuta, leaf, Caerhays Castle, Goran, Cornwall, United Kingdom.
Quercus acuta, bark, Caerhays Castle, Goran, Cornwall, United Kingdom.