Bacterial Disease
Environmental Damage
Fungal Disease
Herbicide Injury
Insect Damage
| Hardiness Zone: | 5 - 7 |
| Mature Height: | 3-6 Feet |
| Mature Width: | 3-6 Feet |
| Features: | Showy light purple to rosy pink flowers in early to mid spring; leaves are deciduous (shed in autumn), but they turn yellow and bronze before falling. |
| Culture: | Partial to full shade; moist, well-drained soil is best; needs acid soil. |
| Cultivars: |
Common Groups of Hybrid Rhododendrons 'Girard' Hybrids: This large group of azaleas includes both deciduous and evergreen cultivars. They vary in flower color and winter hardiness. 'Knapp Hill' Hybrids: The result of crosssing several species of Rhododendron. A large group including 'Knapp Hill', 'Exbury', 'Slocock' and 'Ilam' Hybrids. These azaleas are deciduous. Flower color depends on the cultivar selected. Mildew can be a problem with this group. hardiness zone 5-7. 'Northern Lights' Hybrids: Developed at University of Minnesota. These hybrids were selected for excellent cold hardiness (to -30 degrees). These azaleas are deciduous. Flower color depends on cultivar selected. 'P.J.M.' Hybrids:A group of hybrids that are known for their compact size (3-6 ffet) and their flower color (shades of lavender pink to mauve). These rhododendrons are evergreen, with the foliage taking on a purplish cast in winter. Hardy zone 5 to 7. |
| Mature Form: | Oval to rounded |
| Native To: | China, Korea and Japan |
| Soil Conditions: |
Dry
 Moist, Well-DrainedWet
|
| Tolerance: |
Alkaline Soil
Dry Sites
Salt
Soil Compaction
Wet Sites
Wind
|
| Uses: |
Barrier
Border
Foundation
Hedge
Massing
Naturalizing
Screen
Specimen
|
| Foliage Color: |
Green |
| Fall Foliage Color: |
Yellow |
| Additional Notes: | Alkaline soils will lead to chlorosis (yellowing) of the leaves. |
