Rhododendron 'Russellianum' (Russellianum Rhododendron)
Botanical Information
Family | Ericaceae |
Genus | Rhododendron |
Cultivar | 'Russellianum' |
Category | Perennials, Woody |
Type | Tree (evergreen), Shrub (evergreen) |
Origin | Hybridized by Russell (1831) |
Details
USDA Hardiness Zone | 6 - 9b |
USDA Hardiness Ref. | |
Canadian Hardiness Zone | 7 |
Canada Hardiness Ref. | |
RHS Hardiness Zone | H7 - H3 |
RHS Hardiness Ref. | |
Temperature (°C) | -23.3 - -3.8 |
Temperature (°F) | - 15 |
Height | 2 - 10 m |
Spread | -10 - 25 |
Growth | Medium |
Flowering Period | April, May |
Description and Growing Information
General Description | A shrub or small tree that grows to 2–10 meters in height, with leathery leaves. Flowers are magenta-rose with crimson flecks and blotch at base. |
ID Characteristic | This plant is attractive to bees, butterflies and birds. |
Shape | Compact, upright habit. |
Landscape | Suitable for woodland sheltered sites in large gardens or parks. They can also be grown in large containers. |
Propagation | By softwood cuttings in summer or hardwood cuttings in late autumn. |
Cultivation | Grow in high organic, well-drained, acidic soils in full sun to partial shade. Make sure to mulch well to conserve moisture. |
Pests | Suffers from vine weevils, white fly, scale insects, caterpillars, aphids and honey fungus. |
Notable Specimens | National Trust Trelissick Garden, Feock, near Truro, Cornwall, United Kingdom. |
Habitat | Horticultural origin. |
Bark/Stem Description | A smooth reddish brown bark. |
Leaf Description | Elliptic-lanceolate, 15 cm long, medium green above, brown indumentum below. |
Texture Description | Medium-coarse. |