Rhododendron English Roseum
Prized for its tolerance to sun, cold, and humidity, Rhododendron ‘English Roseum’ is a dense and showy evergreen shrub. From late spring to early summer, ‘English Roseum’ graces the garden with its profuse, large, dome-shaped clusters of 8 to 10, trumpet-shaped, lilac rose flowers with delicate orange freckles.
Prized for its tolerance to sun, cold, and humidity, Rhododendron 'English Roseum' is a dense and showy evergreen shrub. From late spring to early summer, 'English Roseum' graces the garden with its profuse, large, dome-shaped clusters of 8 to 10, trumpet-shaped, lilac rose flowers with delicate orange freckles. They contrast beautifully with the foliage of large, smooth, glossy, medium green leaves. A very reliable performer, this pretty late midseason Rhododendron is quite tough and can withstand temperatures as low as -25ºF (-32ºC). This large ornamental shrub is perfect for background plantings or filling areas beneath deciduous trees where it will add elegance and brilliant color.
- Grows with a good dense habit, up to 6-8 ft. tall and wide (180-240 cm).
- Winner of the Rhododendron of the Year Award of the American Rhododendron Society for the South East region.
- A sun to part shade lover, this plant is easily grown in moist, acidic, humusy, well-drained soils. Plant shallowly in a location protected from strong winter winds. Protect from frost to prevent damage to flowers. Mulch annually with leaf mold to retain moisture, control weeds, and cool the soil.
- Perfect for shrub borders or mixed borders, as a flowering hedge or privacy screen, foundation plantings, and shade gardens.
- Attracts butterflies, hummingbirds, and birds.
- Removing spent flowers promotes new growth.
- All parts of the plant are poisonous if ingested.
- Toxic to dogs, toxic to cats, toxic to horses.
- Toxic to dogs, toxic to cats, toxic to horses.
Requirements
Hardiness | 4 – 8 |
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Plant Type | Shrubs |
Plant Family | Azaleas – Rhododendrons, Rhododendrons – Azaleas |
Exposure | Full Sun, Partial Sun |
Season of Interest | Spring (Late)Summer (Early) |
Height | 6' – 8' (180cm – 240cm) |
Spread | 6' – 8' (180cm – 240cm) |
Spacing | 72″ – 96″ (180cm – 240cm) |
Water Needs | Average |
Maintenance | Low |
Soil Type | Clay, Loam, Sand |
Soil pH | Acid |
Soil Drainage | Moist but Well-Drained |
Characteristics | Plant of Merit, Showy, Evergreen |
Tolerance | Rabbit |
Attracts | Butterflies, Hummingbirds |
Garden Uses | Beds and Borders, Hedges and Screens |
Garden Styles | City and Courtyard, Informal and Cottage, Traditional Garden |