
Light Needs

Mature Height

Mature Spread

Growing Zones
The Autumn Starburst™ Encore® Azalea puts on a very impressive display when it blooms. Two-tone flowers feature coral pink petals with bold white margins, giving the blooms a striped appearance. The Rhododendron ‘Robleze’ is a prolific bloomer in the spring, and this plant will bloom again during the summer and fall. Subsequent blooms tend to produce a small number of flowers, but the plant will still put on a beautiful display.
This plant is a perennial in USDA growing zones 6 through 10. The flowers certainly steal the show, but this Azalea also features dark green foliage that hangs in there all year, allowing this evergreen to provide color and visual interest during the winter. Plant the Autumn Starburst™ Encore® Azalea along foundations, in borders or hedges, or use it in a container. This Azalea will attract butterflies and birds.
Autumn Starburst™ Encore® Azalea Plant Care
Find a spot that receives 4 to 6 hours of sunlight each day because this plant needs full sun to part shade to flourish. Azaleas prefer slightly acidic soil, and the soil should also be rich and allow for good drainage. Established plants need water maybe once or twice a week, but new plants will need water up to three times a week for the first year. Fertilize in the spring and early summer to encourage new growth and more flowers.
This plant stays compact and has a rounded growth habit, so it naturally maintains a good shape, and significant pruning is not generally needed.
Autumn Starburst™ Encore® Azalea Plant Spacing
The Autumn Starburst™ Encore® Azalea will grow 3 feet tall and 3.5 feet wide. For mass plantings or hedges, space the plants 2.5 feet apart to create a consistent wall of greenery. Space plants further apart if you want each individual plant to stand on its own.
Autumn Starburst™ Encore® Azalea Information
USDA Hardiness Zones: 6 -10 |
Plant Type: Bushes |
Light Exposure: Partial Shade to Full Sun (At Least 3 Hours Of Direct Sunlight) |
Mature Height: 3 Feet |
Mature Spread: 3.5 Feet |
Spacing: 2.5 Feet |
Habit: Dwarf |
Flower Color(s): Pink, White |
Flower Description: Bicolor Coral Pink Blossoms With Bold White Margins |
Bloom Period: |
Foliage Type: Evergreen |
Foliage Color(s): Green |
Foliage Description: |
Seasonal Interest: Spring Flowering |
Watering: Consistent |
Resists: N/A |
Tolerates: N/A |
Attracts: Birds, Butterflies |
Container Role: |
Uses: Borders, Specimen or Focal Point, Wildlife Gardens |
Features: Attracts Pollinators, Continuous Blooming or Rebloomer |
Brand: Encore Azalea |
Common Name: Autumn Starburst™ Encore® Azalea |
Other Name(s): |
Scientific Name: Rhododendron ‘Robleze’ PPAF |
- SKU:
- AZASEN
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.
All bushes, perennials & trees 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 2025. 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 24th |
Zone 9 | March 31st |
Zone 8 | April 7th |
Zone 7 | April 14th |
Zone 6b | April 21st |
Zone 6a | April 28th |
Zone 5b | May 5th |
Zone 5a | May 12th |
Zone 4 | May 19th |
Zone 3 | May 26th |
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.