Plant field guide
Azalea (Encore Autumn Sangria)
Vigorous Encore Azalea with rich, deep pink to magenta single flowers in massive quantities. One of the most floriferous Encore varieties, creating a vivid display across three seasons.
Growing requirements
- Scientific name
- Rhododendron 'Roblee'
- Sun
- partial shade
- Water
- moderate
- Height
- 36 in (91 cm) – 54 in (137 cm)
- Spread
- 36 in (91 cm) – 48 in (122 cm)
- Spacing
- Not recorded
- Hardiness zones & minimum temperature
- USDA 6–9; average annual extreme minimum from -10°F (-23.3°C). Hardiness does not predict local frost dates.
- Difficulty
- easy
Planting & seasonal timing
Northern Hemisphere planting months: not yet verified in our database.
Northern Hemisphere pruning months: April, May.
For the Southern Hemisphere, these seasonal windows shift approximately six months. Check your local frost forecast, soil temperature, and species requirements; calendar months are not a guarantee of planting safety.
Heavy bloomer with excellent branching. Needs acidic soil with consistent moisture. More sun tolerant than traditional azaleas for better reblooming. Disease resistant.
Pruning
Prune after spring bloom only. Remove dead branches. Shape lightly if needed.
Fertilizer
Azalea/Rhododendron fertilizer (acidic)
After spring bloom and early fall
Mulch
2-3 inches of pine bark or pine straw.