Rhododendron, Encore Azalea 'Autumn Twist'

Rhododendron

Family
Ericaceae (er-ek-AY-see-ee)
Genus
Rhododendron (roh-do-DEN-dron)
Synonym
Spacing
6-12 in. (15-30 cm)
12-18 in. (30-45 cm)
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)
36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 m)
Hardiness
4-6 ft. (1.2-1.8 m)
Sun Exposure
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
USDA Zone 11: above 4.5 °C (40 °F)
Danger
Full Sun
Sun to Partial Shade
Light Shade
Bloom Color
Parts of plant are poisonous if ingested
Bloom Time
Magenta (pink-purple)
Medium Purple
White/Near White
Foliage
Blooms repeatedly
Height
Alpines and Rock Gardens
Perennials
Shrubs
Sun Exposure
Hardiness
Bloom Color
Bloom Time
Bloom Time
Bloom Color
Bloom Time
Bloom Time
Bloom Color
Bloom Color
Bloom Time
Other Details
Other details
Evergreen
Seed Collecting
Category
From semi-hardwood cuttings
Patent Information
Foliage Color
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
Bloom Characteristics
Water Requirements
Where to Grow
Seed Collecting
Fruit Shape
Fruit Size
Fruit Colors
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
Growing Habit
Days to Maturity
Seed Type
Disease Resistance
Leaf Type
Foliage Color
Bloom Characteristics
Water Requirements
Where to Grow
Other details
Propagation Methods
Soil pH requirements
Patent Information
Plant Size (check one)
Growing Habit
Growth Rate
Leaf Shape
Leaf Appearance
Degree to which the appearance is present
Leaf Texture (top)
Leaf Texture (bottom)
Leaf Color
Color of Leaf Margin
Leaf Substance
Number of Vein Pairs
Appearance of Margin
Margin Width
Flower Shape
Flower Fragrance
Patented
Does it set seed?
Flower Size
Flower Type
Blooming Habit
Foliage Habit
Color Patterns
Awards (if applicable)
Seed Type
Growth Habit
Days to Maturity
Awards (if applicable)
Bloom Shape
Other Details
Pruning Instructions
Kernel Color
Flower Shape
Flower Habit
Bloom Size
Color Pattern
Bloom Shape
Pruning Groups
Bloom Diameter
Heat (Pungency)
Fruit Shape
Fruit Size
Fruit Color
Disease Resistance
Seed Type
Flower Size
Size/Type
Flower Characteristics
Leaf Shape/Type
Leaf Texture
Leaf Color
Propagation
Pollination
Bearing Habit
Rootstock Vigor
Disease Resistance
Fruit Usage
Classification
Regional

This plant is said to grow outdoors in the following regions:

Canton, Georgia

Cornelia, Georgia

Douglasville, Georgia

Lawrenceville, Georgia

Benton, Kentucky

Shreveport, Louisiana

Chestertown, Maryland

Nottingham, Maryland

Valley Lee, Maryland

Southold, New York

Mount Holly, North Carolina

Raleigh, North Carolina

Yukon, Oklahoma

Greenville, South Carolina

Cookeville, Tennessee

Chandler, Texas

Dallas, Texas

Fort Worth, Texas

Friendswood, Texas

Katy, Texas

Powderly, Texas

King George, Virginia

Leesburg, Virginia

Puyallup, Washington

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Gardener's Notes:

4
positives
0
neutral
0
negative
Sort By:
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M
M
Benton, KY (Zone 7a) | October 2024 | positive

I love the second show in the autumn. Here is in west KY, mine are in full bloom on the 31st of October and we've actually had a cou...Read More

V
(Zone 8a) | May 2021 | positive

A very enthusiastic positive for this plant. It has all shades of pink and is a heavy bloomer in spring and less so in autumn. Wouldnâ€...Read More

B
Shreveport, LA | July 2007 | positive

Larger, rounded shape. Matches Formosa purple hue. Robust compared to some. Great contrast between variable flowers and dark green foliage

W
Puyallup, WA (Zone 5a) | October 2003 | positive

Edgewood, Washington
What a great reblooming azalea. It blooms heavy in the Spring and again in the Fall. Sporadic blooms rest o...Read More

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