Light Needs
Mature Height
Mature Spread
Growing Zones
- Zones 6 - 10
- Height 3 - 4 Feet
- Spread 3 - 4 Feet
The Autumn Sunset™ Encore® Azalea, Azalea x ‘Roblen’ PP#16248, has bright red-orange 2.5 inch flowers that bloom spring through fall and will remind you of a beautiful, brilliant sunset. Compact form fits into any landscape. Works well in containers, as an accent or as foundation plantings. This broadleaf evergreen also makes a superior compact hedge, providing four seasons of color.
Autumn Sunset™ Encore® Azalea Care
Requires shade only in the hottest areas. Plant high to promote good drainage. Don’t allow the soil to become dry until established. Azaleas perform best in acidic soil, which can be amended with chelated iron if necessary. Prune only to shape after the first bloom period in spring. Fertilize in late winter or early spring to give the upcoming blooms a boost. This plant tolerates more sun than most other azaleas.
Autumn Sunset™ Encore® Azalea Spacing
When establishing a hedge, plant 3.5 to 4 feet apart, center to center. Plant 5 to 6 feet apart, center to center, for a shrub border or as foundation plantings.
Autumn Sunset Encore Azalea Plant Facts
| USDA Hardiness Zones: 6a - 10b |
| Flower Color(s): Red/Orange |
| Bloom Period: Spring to Fall |
| Foliage Color(s): Glossy Bright Green |
| Light Exposure: Partial Shade to Full Sun |
| Height: 3 Feet |
| Spread: 3.5 Feet |
| Habit: Compact Dwarf |
| Watering: Medium |
| Features: Dwarf, Fall Blooming, Flowering, Rebloomer, Attracts Butterflies |
| Scientific Name: Rhododendron ‘Roblen’ PP16248 |
| Common Name: Autumn Sunset™ Encore Azalea |
| Brand: Encore Azalea |
Please Note: The pictures below are to give a general representation of the different container sizes. The actual size/ages of plants are estimates and will vary based on type of plant, time of year, last pruning & many other factors.
Also Known As:
Quart
Plant Age:
~ 6 months - 1 year
Plant Size:
~ 4"-8"
Pot Size:
~ 4.75"H x 4.5"W
Volume:
1.50 quarts
Also Known As:
2.5 Quart Pot
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 8"-12"
Pot Size:
~ 6.5"H x 6.5"W
Volume:
2.20-2.30 quarts
Also Known As:
#1 Container
1 Gallon
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 10"-14"
Pot Size:
~ 7"H x 7.75"W
Volume:
2.26-3.73 quarts
Also Known As:
#2 Container
2 Gallon
Plant Age:
~ 1.5 - 3 years old
Plant Size:
~ 12"-18"
Pot Size:
~ 9.5"H x 9.5"W
Volume:
1.19-1.76 gallons
Also Known As:
#3 Container
3 Gallon
Plant Age:
~ 2 - 4 years old
Plant Size:
~ 12"-30"
Pot Size:
~9.5"H x 11"W
Volume:
2.32-2.76 gallons
Also Known As:
#5 Container
5 Gallon
Plant Age:
~3-4 years old
Plant Size:
~ 20" - 60"
Pot Size:
~11" H x 10 1/2” W
Volume:
3.5 - 4 gallons
We stand behind our plants with industry-leading guarantees to give you peace of mind.
We want your plants to arrive in great condition! If you notice any issues upon delivery, contact us within 3 days.
Starting January 1, 2026 all bushes, perennials & trees purchased come with an extended 1-year warranty for added confidence. If your plant dies due to a health issue within a year, we’ll make it right.
Pre-ordered plants are scheduled to ship in Spring 2026. We carefully plan our shipping dates based on your USDA Plant Hardiness Zone to ensure optimal planting conditions upon arrival. Want it sooner/later? Reach out, and we'll try our best to accommodate.
Estimated ship week for pre-ordered plants will ship based on growing zones as shown below.
| Growing Zone | Estimated Ship Week |
|---|---|
| Zone 10 | March 30th |
| Zone 9 | March 30th |
| Zone 8 | April 6th |
| Zone 7 | April 13th |
| Zone 6b | April 20st |
| Zone 6a | April 27th |
| Zone 5b | May 4th |
| Zone 5a | May 11th |
| Zone 4 | May 18th |
| Zone 3 | May 25th |
Note: These are only estimated ship dates. Plants may ship out later depending on weather & growing conditions of the plant.
Note: Only plants indicated as pre-order will ship as shown above. All other plants and hard goods will ship as normal.
Plants that are currently in stock typically ship within 2-7 business days after your order is placed.
Plant Addicts ships to the lower 48 states within the U.S. Unfortunately, we do not currently ship to Alaska, Hawaii, or internationally.
This plant cannot be shipped to the following states: AK, HI. These restrictions apply only to this specific plant due to agricultural regulations or other limitations. Other plants may still be available for shipping to these states.
If you have any questions about shipping restrictions, feel free to reach out to our team!