Autumn Amethyst® Azalea

Autumn Amethyst® Azalea - Reblooming Dark Lavender Evergreen Azalea

Bring rich purple color to your landscape through multiple seasons with Autumn Amethyst® Encore® Azalea. This reblooming evergreen azalea produces beautiful dark lavender-purple flowers in spring, followed by repeat flowering through summer and fall for a much longer season of color than traditional azaleas.

Autumn Amethyst® also provides exceptional foliage interest. Glossy green leaves create an attractive backdrop during the growing season, then develop distinctive purple tones as temperatures cool, adding color and texture to the winter landscape.

Growing approximately 4 feet tall and 4 feet wide, Autumn Amethyst® develops a dense, rounded habit that works beautifully in foundation plantings, flowering hedges, mixed borders, woodland edges, mass plantings, and large containers. It is also recognized as one of the more cold-hardy varieties in the Encore® Azalea collection.

Why You'll Love Autumn Amethyst® Azalea

Blooms Multiple Times: Produces a spectacular spring display followed by additional flowers during summer and fall.

Dark Lavender-Purple Flowers: Attractive single-form blooms measure approximately 2 inches across and provide rich color against glossy foliage.

Beautiful Winter Foliage: Green summer foliage develops attractive purple and amethyst tones during colder weather.

Compact, Rounded Growth: Matures approximately 4 feet tall and wide, making it versatile for foundations, borders, hedges, and mass plantings.

Excellent Cold Hardiness: Autumn Amethyst® is considered one of the more cold-hardy selections within the Encore® Azalea collection.

Sun Tolerant for an Azalea: Performs from light shade to full sun, with approximately 4-6 hours of direct sunlight producing the best flowering.

Autumn Amethyst® Azalea Details

• Botanical Name: Rhododendron hybrid 'Conlee'

• Common Name: Autumn Amethyst® Encore® Azalea

• Plant Type: Reblooming evergreen flowering shrub

• Mature Height: Approximately 4 feet

• Mature Width: Approximately 4 feet

• Growth Habit: Dense, compact, rounded

• Growth Rate: Moderate

• Flower Color: Dark lavender-purple

• Bloom Form: Single

• Bloom Size: Approximately 2 inches across

• Bloom Season: Spring, summer, and fall

• Foliage: Glossy green during the growing season with purple winter coloration

• Foliage Type: Evergreen to semi-evergreen depending on climate

• Light: Light shade to full sun

• Ideal Sun Exposure: Approximately 4-6 hours of direct sunlight

• Soil: Moist, well-drained, slightly acidic soil

• Preferred Soil pH: Approximately 5.0-6.0

• Water: Moderate; keep consistently moist while establishing

• USDA Hardiness Zones: 6a-10b

• Pollinator Friendly: Yes

• Maintenance: Low to moderate

• Year-Round Interest: Yes

Growing Conditions

Light Requirements: Autumn Amethyst® grows from light shade to full sun. For the strongest reblooming performance, provide approximately 4-6 hours of direct sunlight each day. Morning sun with some afternoon shade is especially beneficial in hotter climates.

Soil Requirements: Plant in moist, well-drained, acidic soil. Azaleas prefer soil with a pH around 5.0-6.0 and perform poorly in areas where water remains standing around the root system.

Water Requirements: Water regularly after planting while roots become established. Once established, provide deep watering during extended periods of hot or dry weather, particularly during active flowering periods.

Cold Hardiness: Autumn Amethyst® is hardy into USDA Zone 6a and is recognized as one of the more cold-tolerant Encore® Azalea varieties.

Drainage: Excellent drainage is important. When planting in heavy clay soil, amend the planting area or create a slightly raised planting bed to help prevent excessive moisture around the roots.

Care Instructions

Watering: Water thoroughly after planting and maintain consistent moisture during the first growing season. Once established, water deeply when the upper soil begins to dry.

Fertilizing: Feed with a fertilizer formulated for azaleas, rhododendrons, or other acid-loving plants after the spring bloom cycle. Avoid heavy fertilization late in the growing season.

Pruning: Autumn Amethyst® naturally develops an attractive rounded habit and requires minimal pruning. If shaping is necessary, prune immediately after the main spring flowering period so you do not remove developing buds for later blooms.

Mulching: Apply approximately 2-3 inches of mulch around the root zone to conserve moisture, moderate soil temperatures, and suppress weeds. Keep mulch slightly away from the main stems.

Planting Depth: Plant with the top of the root ball at or slightly above the surrounding soil level. Azaleas have relatively shallow root systems and should not be planted too deeply.

Landscaping Uses

Foundation Plantings: The manageable 4-foot size makes Autumn Amethyst® excellent beneath windows, near porches, and along home foundations.

Flowering Hedges: Plant several together to create a colorful informal hedge that provides evergreen structure and repeat flowering.

Mass Plantings: Group multiple plants together for a dramatic sweep of dark lavender-purple flowers throughout the growing season.

Garden Borders: Use in mixed shrub and perennial borders where its repeated flowering can extend seasonal color.

Woodland Edges: Autumn Amethyst® works beautifully along areas transitioning between sunny landscape beds and lightly shaded woodland gardens.

Entryways: Plant near walkways, porches, and entrances where the repeat flowers can be enjoyed up close.

Containers: Its compact habit makes it suitable for large decorative containers with excellent drainage.

Pollinator Gardens: The repeated bloom cycles provide flowers for bees, butterflies, and other beneficial pollinators during multiple seasons.

Frequently Asked Questions

How large does Autumn Amethyst® Azalea get?
Autumn Amethyst® typically matures approximately 4 feet tall and 4 feet wide, developing a dense, rounded form.

What color are Autumn Amethyst® flowers?
The flowers are a rich dark lavender-purple and have a single bloom form measuring approximately 2 inches across.

Does Autumn Amethyst® bloom more than once?
Yes. Like other Encore® Azaleas, it produces its primary flower display in spring and then reblooms during summer and fall.

Does Autumn Amethyst® stay evergreen?
It is considered evergreen, although foliage retention can vary depending on winter temperatures. One of its standout characteristics is the attractive purple coloration its foliage develops during colder weather.

Does Autumn Amethyst® need full sun?
No. It grows in light shade to full sun. Approximately 4-6 hours of direct sunlight generally produces the best flowering performance.

Can Autumn Amethyst® grow in afternoon shade?
Yes. Morning sun followed by afternoon shade can be especially beneficial in warmer climates because it provides enough sunlight for flowering while protecting the plant from intense afternoon heat.

What type of soil does Autumn Amethyst® prefer?
It prefers moist, well-drained, slightly acidic soil with a pH around 5.0-6.0.

How far apart should I plant Autumn Amethyst® Azaleas?
For individual specimens, allow approximately 4 feet between plants. They can be planted somewhat closer when creating a continuous flowering hedge or mass planting.

When should Autumn Amethyst® be pruned?
If pruning is needed, trim immediately after the main spring flowering period. Pruning too late can reduce the number of flowers produced during later bloom cycles.

Is Autumn Amethyst® cold hardy?
Yes. It is hardy to USDA Zone 6a and is considered one of the more cold-hardy selections in the Encore® Azalea collection.

Does Autumn Amethyst® have winter interest?
Yes. In addition to being evergreen, its foliage develops attractive purple and amethyst tones during colder weather.

Is Autumn Amethyst® Azalea easy to care for?
Yes. When planted in acidic, well-drained soil with adequate sunlight and moisture, it is a relatively low-maintenance shrub that provides flowers during multiple seasons.