Woody > Acer > Acer palmatum > Acer palmatum 'Emperor I'
Acer palmatum
'Emperor I'
Emperor I Japanese Maple
| Family |
| Sapindaceae (Aceraceae) |
| Genus |
| Acer |
| Species |
| palmatum |
| Cultivar |
| 'Emperor I' |
| Category |
| Woody |
| Type |
| Shrub (deciduous) |
| USDA Hardiness Zone |
| 5 - 9 |
| Canadian Hardiness Zone |
| 6 |
| RHS Hardiness Zone |
| H4 - H7 |
| Temperature (°C) |
| - 20 - (-5) |
| Temperature (°F) |
| - 4 - 23 |
| Height |
| 3 - 5 m |
| Spread |
| 3 - 5 m |
Photographs
Description and Growing Information
Flowering Period
| Landscape |
| Specimen, accent planting and border. |
| Cultivation |
| Full sun and partial-shade. Moist, organically rich, slightly acidic and well-drained soil. Prefers sandy loam. |
| Shape |
| Round to broad-rounded and low branching. |
| Growth |
| Medium |
| Pests |
| Stem canker, leaf spots, fusarium, verticillium, botrytis, anthracnose and root rots may be a problem. Aphids, scale, borers and root weevils may be troublesome. |
| Habitat |
| Horticultural origin. |
| Leaf Description |
| 5 - 7 serrate, deeply-cut lobes. The lobes are broadest in the middle with long tapered tips. |
| Flower Description |
| Small, flowers in umbels. |
| Fruit Description |
| Samaras that are 1 - 2 cm long and grow in paris. They ripen in September - October. |
| Colour Description |
| The leaves are dark purple or red in spring and summer, turning a scarlet red in fall. Samaras are yellow, reddish-purple and bronze. |
| Notable Specimens |
| Westonbirt, The National Arboretum, Tetbury, Gloucestershire, England. |
| Propagation |
| Grafted. |
top