Life Span
Perennial
Perennial
Type
Perennial
Broadleaf Evergreen
Origin
North America, United States, Northeastern United States, Mid-Atlantic United States, Southeastern United States, Canada
-
Types
-
Rhododendron, Azalea indica, Azalea japonica
Number of Varieties
210
0
40000
👆🏻
Habitat
gardens, Hardwood forests
Forests
USDA Hardiness Zone
5-78-11
0
99
👆🏻
AHS Heat Zone
7-5
-
Sunset Zone
2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10
21,22
Habit
Clump-Forming
Oval or Rounded
Plant Size
Minimum Height
15.20 cm60.00 cm
0
3900
👆🏻
Minimum Width
12.70 cm90.00 cm
0
6350
👆🏻
Plant Color
Flower Color
White
Red
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Light Green
-
Leaf Color in Spring
Green, Blue Green
Green, Dark Green
Leaf Color in Summer
Green, Gray Green
Green, Dark Green
Leaf Color in Fall
Green, Gray Green
Green, Dark Green
Leaf Color in Winter
Light Green
Green, Dark Green
Shape
Leaf Shape
Butterfly shaped
Linear
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Partial shade, Full Shade
Full Sun, Partial Sun, Partial shade
Growth Rate
Slow
Medium
Type of Soil
Clay, Loam
Loam, Sand
The pH of Soil
Neutral, Alkaline
Acidic
Soil Drainage
Average
Well drained
Bloom Time
Late Spring, Early Summer
Early Spring, Spring, Late Fall, Winter, Late Winter
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
-
Where to Plant?
Ground, Pot
Ground
How to Plant?
Divison, Seedlings, Stem Planting
Seedlings, Stem Cutting
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Medium
Average Water Needs, Do not water frequently
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Neutral, Alkaline
Acidic
Soil Type
Clay, Loam
Loam, Sand
Soil Drainage Capacity
Average
Well drained
Sun Exposure
Partial shade, Full Shade
Full Sun, Partial Sun, Partial shade
Pruning
Remove deadheads, Requires very little pruning
Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
No fertilizers needed
All-Purpose Liquid Fertilizer, Apply N-P-K
Pests and Diseases
Pests and diseases free, Red blotch
Caterpillars, Citrus leaf miner, Petal blight, Red blotch, Rust, Twig blight, Whiteflies
Plant Tolerance
Drought
Drought, Shade areas
Flowers
✔
✘
✔
✘
Flower Petal Number
Single
Single
Fruits
Showy Fruit
✔
✘
✔
✘
Edible Fruit
✔
✘
✔
✘
Fragrance
Fragrant Flower
✔
✘
✔
✘
Fragrant Fruit
✔
✘
✔
✘
Fragrant Leaf
✔
✘
✔
✘
Fragrant Bark/Stem
✔
✘
✔
✘
Showy Foliage
✔
✘
✔
✘
Showy Bark
✔
✘
✔
✘
Foliage Texture
Coarse
Medium
Foliage Sheen
Matte
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Bees, Butterflies
Onion thrips, White Pine Weevil
Allergy
-
-
Uses
Aesthetic Uses
Showy Purposes
Bonsai, Cottage Garden
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification
Plant Benefits
Medicinal Uses
Cancer, Diuretic
Astringent
Part of Plant Used
Flowers, Root
Flowers, Leaves
Other Uses
-
Repellent, used for making charcoal, Used for woodware
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Groundcover
Container, Feature Plant, Foundation, Mixed Border, Rock Garden, Wall, Topiary, Bonsai, Espalier
Botanical Name
JEFFERSONIA diphylla
RHODODENDRON 'Anthopogon'
Common Name
-
Evergreen Azalea
In Hindi
Twinleaf
Azalea
In German
Twinleaf
Azalee
In French
Twinleaf
azalée
In Spanish
Twinleaf
azalea
In Greek
Twinleaf
αζάλεα
In Portuguese
Twinleaf
Azalea
In Polish
Twinleaf
azalia
In Latin
Twinleaf
Azalea
Kingdom
Plantae
Plantae
Phylum
Tracheophyta
Tracheophyta
Class
Magnoliopsida
Magnoliopsida
Order
Ranunculales
Ericales
Family
Berberidaceae
Ericaceae
Genus
Jeffersonia
Rhododendron
Clade
Angiosperms, Eudicots
Angiosperms, Asterids, Eudicots
Tribe
-
Rhodoreae
Subfamily
-
Ericoideae
Number of Species
21024
1
27800
👆🏻