Life Span
Perennial
Perennial
Type
Tree
Broadleaf Evergreen
Origin
Mid-Atlantic United States, Southeastern United States, Central United States, South-Central United States
-
Types
-
Rhododendron, Azalea indica, Azalea japonica
Habitat
bottomlands, Depression on prairies, ditches, Floodplains, Riverbanks, stream banks, Swamps
Forests
USDA Hardiness Zone
4-9
8-11
Sunset Zone
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
21,22
Habit
Oval or Rounded
Oval or Rounded
Flower Color
Yellow, Brown
Red
Flower Color Modifier
Bicolor
Bicolor
Leaf Color in Spring
Green, Light Green
Green, Dark Green
Leaf Color in Summer
Green, Light Green
Green, Dark Green
Leaf Color in Fall
Yellow, Light Yellow, Tan
Green, Dark Green
Leaf Color in Winter
-
Green, Dark Green
Leaf Shape
Oval with a pointed tip and fine teeth along their edges
Linear
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall, Winter
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun, Partial shade
Type of Soil
Clay, Loam, Sand
Loam, Sand
The pH of Soil
Acidic, Neutral
Acidic
Soil Drainage
Average
Well drained
Bloom Time
Spring
Early Spring, Spring, Late Fall, Winter, Late Winter
Tolerances
Wet Site, Pollution, Soil Compaction
-
Where to Plant?
Ground
Ground
How to Plant?
Seedlings
Seedlings, Stem Cutting
Plant Maintenance
Low
Medium
Watering Requirements
Requires a lot of watering, Requires regular watering
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 pH
Acidic, Neutral
Acidic
Soil Type
Clay, Loam, Sand
Loam, Sand
Soil Drainage Capacity
Average
Well drained
Sun Exposure
Full Sun, Partial Sun
Full Sun, Partial Sun, Partial shade
Pruning
Prune in the late winter or spring, Remove dead or diseased plant parts, Shape and thin as needed
Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
All-Purpose Liquid Fertilizer, No need to fertilize every year
All-Purpose Liquid Fertilizer, Apply N-P-K
Pests and Diseases
Aphids, Red blotch, Sawfly Larvae
Caterpillars, Citrus leaf miner, Petal blight, Red blotch, Rust, Twig blight, Whiteflies
Plant Tolerance
Pollution, Soil Compaction, Wet Site
Drought, Shade areas
Flower Petal Number
-
Single
Foliage Texture
Medium
Medium
Foliage Sheen
Matte
Matte
Attracts
-
Onion thrips, White Pine Weevil
Aesthetic Uses
Showy Purposes
Bonsai, Cottage Garden
Environmental Uses
Erosion control, Wildlife
Air purification
Medicinal Uses
-
Astringent
Part of Plant Used
Whole plant
Flowers, Leaves
Other Uses
used for making roof trusses, poles, joists, piles, Used in construction, Used in Furniture
Repellent, used for making charcoal, Used for woodware
Used As Indoor Plant
No
No
Used As Outdoor Plant
Yes
Yes
Garden Design
Feature Plant, Shade Trees
Container, Feature Plant, Foundation, Mixed Border, Rock Garden, Wall, Topiary, Bonsai, Espalier
Botanical Name
BETULA nigra
RHODODENDRON 'Anthopogon'
Common Name
River Birch
Evergreen Azalea
In Hindi
River Birch
Azalea
In German
Fluss Birch
Azalee
In French
Birch river
azalée
In Spanish
river Birch
azalea
In Greek
ποταμός Birch
αζάλεα
In Portuguese
river Birch
Azalea
In Polish
Rzeka Birch
azalia
Phylum
Magnoliophyta
Tracheophyta
Class
Magnoliopsida
Magnoliopsida
Family
Betulaceae
Ericaceae
Genus
Betula
Rhododendron
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Asterids, Eudicots
Season and Care of River Birch and Azalea
Season and care of River Birch and Azalea is important to know. While considering everything about River Birch and Azalea Care, growing season is an essential factor. River Birch season is Spring, Summer, Fall and Winter and Azalea season is Spring, Summer, Fall and Winter. The type of soil for River Birch is Clay, Loam, Sand and for Azalea is Loam, Sand while the PH of soil for River Birch is Acidic, Neutral and for Azalea is Acidic.
River Birch and Azalea Physical Information
River Birch and Azalea physical information is very important for comparison. River Birch height is 1,220.00 cm and width 1,220.00 cm whereas Azalea height is 60.00 cm and width 90.00 cm. The color specification of River Birch and Azalea are as follows:
Care of River Birch and Azalea
Care of River Birch and Azalea include pruning, fertilizers, watering etc. River Birch pruning is done Prune in the late winter or spring, Remove dead or diseased plant parts and Shape and thin as needed and Azalea pruning is done Remove damaged leaves, Remove dead branches and Remove dead leaves. In summer River Birch needs Lots of watering and in winter, it needs Average Water. Whereas, in summer Azalea needs Lots of watering and in winter, it needs Average Water.