Life Span
Perennial
Perennial
Type
Broadleaf Evergreen
Tree
Origin
-
Mid-Atlantic United States, Southeastern United States, Central United States, South-Central United States
Types
Rhododendron, Azalea indica, Azalea japonica
-
Number of Varieties
103
0
40000
👆🏻
Habitat
Forests
bottomlands, Depression on prairies, ditches, Floodplains, Riverbanks, stream banks, Swamps
USDA Hardiness Zone
8-114-9
0
99
👆🏻
AHS Heat Zone
-
9-1
Sunset Zone
21,22
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Habit
Oval or Rounded
Oval or Rounded
Plant Size
Minimum Height
60.00 cm1,220.00 cm
0
3900
👆🏻
Minimum Width
90.00 cm1,220.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Red
Yellow, Brown
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
-
Black
Leaf Color in Spring
Green, Dark Green
Green, Light Green
Leaf Color in Summer
Green, Dark Green
Green, Light Green
Leaf Color in Fall
Green, Dark Green
Yellow, Light Yellow, Tan
Leaf Color in Winter
Green, Dark Green
-
Shape
Leaf Shape
Linear
Oval with a pointed tip and fine teeth along their edges
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun, Partial Sun, Partial shade
Full Sun, Partial Sun
Growth Rate
Medium
Fast
Type of Soil
Loam, Sand
Clay, Loam, Sand
The pH of Soil
Acidic
Acidic, Neutral
Soil Drainage
Well drained
Average
Bloom Time
Early Spring, Spring, Late Fall, Winter, Late Winter
Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
-
Wet Site, Pollution, Soil Compaction
Where to Plant?
Ground
Ground
How to Plant?
Seedlings, Stem Cutting
Seedlings
Plant Maintenance
Medium
Low
Watering Plants
Watering Requirements
Average Water Needs, Do not water frequently
Requires a lot of watering, Requires regular watering
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Acidic
Acidic, Neutral
Soil Type
Loam, Sand
Clay, Loam, Sand
Soil Drainage Capacity
Well drained
Average
Sun Exposure
Full Sun, Partial Sun, Partial shade
Full Sun, Partial Sun
Pruning
Remove damaged leaves, Remove dead branches, Remove dead leaves
Prune in the late winter or spring, Remove dead or diseased plant parts, Shape and thin as needed
Fertilizers
All-Purpose Liquid Fertilizer, Apply N-P-K
All-Purpose Liquid Fertilizer, No need to fertilize every year
Pests and Diseases
Caterpillars, Citrus leaf miner, Petal blight, Red blotch, Rust, Twig blight, Whiteflies
Aphids, Red blotch, Sawfly Larvae
Plant Tolerance
Drought, Shade areas
Pollution, Soil Compaction, Wet Site
Flowers
Showy
Showy
Flower Petal Number
Single
-
Fruits
Showy Fruit
✔
✘
✔
✘
Edible Fruit
✔
✘
✔
✘
Fragrance
Fragrant Flower
✔
✘
✔
✘
Fragrant Fruit
✔
✘
✔
✘
Fragrant Leaf
✔
✘
✔
✘
Fragrant Bark/Stem
✔
✘
✔
✘
Showy Foliage
✔
✘
✔
✘
Showy Bark
✔
✘
✔
✘
Foliage Texture
Medium
Medium
Foliage Sheen
Matte
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Onion thrips, White Pine Weevil
-
Allergy
-
Asthma
Uses
Aesthetic Uses
Bonsai, Cottage Garden
Showy Purposes
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Erosion control, Wildlife
Plant Benefits
Medicinal Uses
Astringent
-
Part of Plant Used
Flowers, Leaves
Whole plant
Other Uses
Repellent, used for making charcoal, Used for woodware
used for making roof trusses, poles, joists, piles, Used in construction, Used in Furniture
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Container, Feature Plant, Foundation, Mixed Border, Rock Garden, Wall, Topiary, Bonsai, Espalier
Feature Plant, Shade Trees
Botanical Name
RHODODENDRON 'Anthopogon'
BETULA nigra
Common Name
Evergreen Azalea
River Birch
In Hindi
Azalea
River Birch
In German
Azalee
Fluss Birch
In French
azalée
Birch river
In Spanish
azalea
river Birch
In Greek
αζάλεα
ποταμός Birch
In Portuguese
Azalea
river Birch
In Polish
azalia
Rzeka Birch
In Latin
Azalea
Betula
Kingdom
Plantae
Plantae
Phylum
Tracheophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Ericales
Fagales
Family
Ericaceae
Betulaceae
Genus
Rhododendron
Betula
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Eudicots, Rosids
Tribe
Rhodoreae
-
Subfamily
Ericoideae
-
Number of Species
10243
1
27800
👆🏻