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 aberconwayi, Rhododendron bulu, Rhododendron kanehirae
Number of Varieties
3700
0
40000
👆🏻
Habitat
bottomlands, Depression on prairies, ditches, Floodplains, Riverbanks, stream banks, Swamps
moist forests
USDA Hardiness Zone
4-95-8
0
99
👆🏻
AHS Heat Zone
9-1
-
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
Spreading
Plant Size
Minimum Height
1,220.00 cm150.00 cm
0
3900
👆🏻
Minimum Width
1,220.00 cm150.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Yellow, Brown
Red
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Black
Green, Tan
Leaf Color in Spring
Green, Light Green
Green
Leaf Color in Summer
Green, Light Green
Green
Leaf Color in Fall
Yellow, Light Yellow, Tan
Green
Leaf Color in Winter
-
Green
Shape
Leaf Shape
Oval with a pointed tip and fine teeth along their edges
Ovate
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun
Growth Rate
Fast
Medium
Type of Soil
Clay, Loam, Sand
Loam, Sand
The pH of Soil
Acidic, Neutral
Acidic
Soil Drainage
Average
Well drained
Bloom Time
Spring
Late Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Wet Site, Pollution, Soil Compaction
-
Where to Plant?
Ground
Ground
How to Plant?
Seedlings
From Rhizomes, Seedlings, Stem Planting
Plant Maintenance
Low
Medium
Watering Plants
Watering Requirements
Requires a lot of watering, Requires regular watering
Do Not over Water, Keep ground moist
In Summer
Lots of watering
Consistently
In Spring
Moderate
Moderate
In Winter
Average Water
Ample Water
Soil
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
Pruning
Prune in the late winter or spring, Remove dead or diseased plant parts, Shape and thin as needed
Prune after flowering, Remove dead or diseased plant parts, Remove deadheads, Remove short twigs
Fertilizers
All-Purpose Liquid Fertilizer, No need to fertilize every year
Apply 12-10-18 NPK, General garden fertilizer
Pests and Diseases
Aphids, Red blotch, Sawfly Larvae
Azalea leaf gall, Bud blast, Galls, Honey fungus, Leaf Hoppers, Leaf spot, Petal blight, Phytophthora, Powdery mildew, Rust, Silver leaf
Plant Tolerance
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
Coarse
Foliage Sheen
Matte
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
-
-
Allergy
Asthma
Asthma
Uses
Aesthetic Uses
Showy Purposes
Showy Purposes
Beauty Benefits
-
Making cosmetics
Edible Uses
✔
✘
✔
✘
Environmental Uses
Erosion control, Wildlife
Air purification
Plant Benefits
Medicinal Uses
-
Burns, Chronic fatigue, Cold, Diarrhea, Dysentry, Headache, Rheumatism
Part of Plant Used
Whole plant
Whole plant
Other Uses
used for making roof trusses, poles, joists, piles, Used in construction, Used in Furniture
Cosmetics, Employed in herbal medicine, Oil is used for aromatherapy, Oil is used in perfume, soaps, creams, etc., Sometimes used for making wine
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Shade Trees
Feature Plant, Hedges, Mixed Border, Screening, Wind Break, Topiary, Bonsai, Espalier
Botanical Name
BETULA nigra
RHODODENDRON
Common Name
River Birch
Rhododendron
In Hindi
River Birch
rhododendron
In German
Fluss Birch
Rhododendron
In French
Birch river
rhododendron
In Spanish
river Birch
rododendro
In Greek
ποταμός Birch
ροδοδάφνη
In Portuguese
river Birch
rododendro
In Polish
Rzeka Birch
rododendron
In Latin
Betula
Rhododendron
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Fagales
Ericales
Family
Betulaceae
Ericaceae
Genus
Betula
Rhododendron
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Asterids, Eudicots
Tribe
-
Rhodoreae
Subfamily
-
Ericoideae
Number of Species
31024
1
27800
👆🏻