Light Needs
Mature Height
Mature Spread
Growing Zones
Autumn Princess™ Encore® Azalea (Azalea x ‘Roblea’ PP#12142) is a compact, evergreen shrub that produces beautiful semi-double pink flowers from spring through fall. Its long blooming season makes it a standout in any landscape, while the foliage adds year-round interest—turning a rich burgundy in fall and winter. This versatile azalea is perfect for use as a specimen plant, in containers, or as part of a foundation planting, adding vibrant color and texture across multiple seasons.
Autumn Princess Encore Azalea Care
Plant azaleas high in the soil to encourage good drainage, as they prefer evenly moist but well-drained conditions. They thrive in acidic soil, which can be amended with organic matter or chelated iron if necessary. Keep the soil consistently moist until the plant is established. Fertilize in late winter or early spring with a slow-release fertilizer designed for acid-loving plants to support new growth and abundant blooms. Prune only to shape after the first flush of flowers in spring to preserve future blooms. Mulching around the base helps retain soil moisture and protect the roots.
Autumn Princess Encore Azalea Growth & Spacing
This Encore Azalea grows to about 3 feet tall and wide, making it ideal for small gardens or tight spaces.
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Hedges: Plant 3 feet apart, center to center, for a continuous row
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Shrub borders and foundation plantings: Space 4.5 to 5 feet apart
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Containers: Use a frost-proof pot at least 14–16 inches wide with acidic potting soil
Why Grow Autumn Princess Encore Azalea?
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Long blooming season with semi-double pink flowers spring through fall
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Evergreen foliage that turns deep burgundy in fall and winter
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Compact size, perfect for small spaces, borders, and containers
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Low-maintenance and versatile in a variety of garden settings
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Provides reliable color and texture throughout the year
Autumn Princess Encore Azalea is a hardy, repeat-blooming azalea that brings four seasons of interest to the landscape. Its colorful flowers, rich foliage, and compact size make it a must-have for gardens, borders, and containers alike.
Autumn Princess Encore Azalea Plant Facts
| USDA Hardiness Zones: 6-10 |
| Flower Color(s): Salmon Pink |
| Bloom Period: Spring to Fall |
| Foliage Color(s): Dark Green |
| Light Exposure: Partial Shade to Full Sun |
| Height: 3.5 Feet |
| Spread: 3 Feet |
| Habit: Rounded |
| Watering: Medium |
| Features: Fall Blooming, Flowering, Rebloomer, Attracts Butterflies |
| Scientific Name: Rhododendron ‘Roblea’ PP12142 |
| Common Name: Autumn Princess™ 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
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We want your plants to arrive in great condition! If you notice any issues upon delivery, contact us within 3 days.
Starting January 1, 2025 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.
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!