Azalea Autumn Amethyst

Autumn Amethyst Encore Azalea

Azalea ‘Autumn Amethyst’ is a popular Encore® evergreen azalea valued for its rich purple-violet flowers and repeat blooming habit. It flowers heavily in spring, then reblooms summer through fall, providing extended seasonal color well beyond traditional azaleas.

The shrub forms a dense, rounded habit with dark green, glossy evergreen foliage, offering year-round structure and strong garden presence. ‘Autumn Amethyst’ is known for reliable reblooming and good cold tolerance among Encore varieties.

Key features


Width: 4–5 ft



Height: 4–5 ft



Flower color: Purple-violet



Bloom time: Spring, summer, and fall (reblooming)



Foliage: Dark green, evergreen



Form: Dense, rounded mound



Life cycle: Evergreen shrub



Growing conditions


Sun: Full sun to part shade (best reblooming with more sun)



Soil: Acidic, moist, well-drained; rich in organic matter



Water: Moderate; consistent moisture preferred



Hardiness: USDA Zones 6a–10a



Azalea Group: Encore® Azalea



Landscape use


Foundation plantings



Evergreen mass plantings



Mixed shrub borders



Accent plantings with extended color season



Notes


One of the most cold-hardy Encore azaleas



Increased sun exposure improves rebloom performance



Generally deer resistant



Mulch to maintain even soil moisture



Minimal pruning required; prune after spring bloom only

Plant type

Broadleaf Evergreen, Flowering Shrub

Height

4-5'

Width

4-5'

Hardiness zones

6–9

Sunlight

Full Sun, Partial Shade

Growth rate

Moderate

Bloom time

Fall, Spring, Summer

Leaf color

Green

Fall color

Purple

Attracts

Butterflies, Hummingbirds

Soil

Loamy, Loamy well-drained, Sandy well-drained

Landscape use

Container, Mass Planting, Specimen

Shape

Rounded, Upright

Deer resistant

Yes

Drought tolerant

No