Rhododendron Betty Anne Voss
Robin Hill Azalea
Betty Anne Voss (Rhododendron ‘Betty Anne Voss’) is an evergreen azalea with purple flowers. Its display arrives in the later part of the rhododendron flowering season, with the exact timing influenced by local weather. Individual flowers measure about 3¼ inches across. The nested floral layers add depth to each blossom. Wavy petal edges give the clusters additional texture.
The plant develops a rounded outline and a dense crown. The green leaves have a glossy surface that gives the foliage a distinct presence between flowering seasons. Its low early growth makes it useful near the front of a planting where the flowers remain easy to see.
Give it acidic, humus-rich soil that stays moist and drains freely. A sheltered position with filtered light or morning sun is a useful starting point; protect the roots from prolonged drying and keep mulch clear of the stems.
Size guide
• Height: About 1 ft at 10 years; growth continues afterward
• Width: Allow for the cultivar’s natural branch spread; a verified numerical spread is not available in this reference.
Hardiness
• Approximate cold tolerance: -10°F
• USDA cold-limit equivalent: Zone 6a
This equivalence is calculated from the published temperature rating. Local conditions and summer climate also affect performance.
Best Uses
• Border
• Rock Garden
• Accent Plant
- Plant type
- Broadleaf Evergreen, Evergreen Shrub, Flowering evergreen shrub
- Height
- 1 ft+
- Width
- 2'-4'
- Hardiness zones
- 6a–8
- Sunlight
- Part shade
- Bloom time
- Spring to summer
- Flower color
- Purple
- Leaf color
- Green
- Fall color
- Dark Green, Green
- Fruit color
- Green
- Attracts
- Butterflies
- Soil
- Acidic, Humus rich, Moist well-drained
- Landscape use
- Accent Plant, Border, Rock Garden
- Shape
- Dense, Rounded
- Bark
- Smooth
- Fruit
- No
- Fragrant
- No
- Deer resistant
- No
- Salt tolerant
- No
- Drought tolerant
- No
- 10-year height
- 1 ft