Life Span
Perennial
Perennial
Type
Needled or Scaled Evergreen
Broadleaf Evergreen
Origin
Northwestern United States, Canada
-
Types
-
Rhododendron aberconwayi, Rhododendron bulu, Rhododendron kanehirae
Number of Varieties
6700
0
40000
👆🏻
Habitat
Lowland, Moist Soils, Swamps
moist forests
USDA Hardiness Zone
5-75-8
0
99
👆🏻
AHS Heat Zone
8-1
-
Sunset Zone
A3, 1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
21,22
Habit
Pyramidal
Spreading
Plant Size
Minimum Height
1,520.00 cm150.00 cm
0
3900
👆🏻
Minimum Width
760.00 cm150.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Light Yellow
Red
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Brown, Sienna
Green, Tan
Leaf Color in Spring
Dark Green
Green
Leaf Color in Summer
Dark Green
Green
Leaf Color in Fall
Dark Green
Green
Leaf Color in Winter
Dark Green, Bronze
Green
Shape
Leaf Shape
Scale-like imbricate
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
Loam
Loam, Sand
The pH of Soil
Acidic, Neutral
Acidic
Soil Drainage
Well drained
Well drained
Bloom Time
Spring
Late Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Pollution, Soil Compaction
-
Where to Plant?
Ground
Ground
How to Plant?
Cuttings, Hardwood Cuttings, Rooted stem cutting, Seedlings
From Rhizomes, Seedlings, Stem Planting
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Average Water Needs, Needs a lot of moisture in the growing season, when new, water every week
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, Alkaline
Acidic
Soil Type
Clay, Loam, Sand
Loam, Sand
Soil Drainage Capacity
Well drained
Well drained
Sun Exposure
Full Sun
Full Sun, Partial Sun
Pruning
Remove damaged leaves, Remove dead branches, Remove dead leaves
Prune after flowering, Remove dead or diseased plant parts, Remove deadheads, Remove short twigs
Fertilizers
All-Purpose Liquid Fertilizer
Apply 12-10-18 NPK, General garden fertilizer
Pests and Diseases
Armillaria root rot, Bark beetles
Azalea leaf gall, Bud blast, Galls, Honey fungus, Leaf Hoppers, Leaf spot, Petal blight, Phytophthora, Powdery mildew, Rust, Silver leaf
Plant Tolerance
Drought
-
Flowers
Insignificant
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
Fine
Coarse
Foliage Sheen
Glossy
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
-
-
Allergy
Asthma, contact allergic dermatitis, Urticaria
Asthma
Uses
Aesthetic Uses
-
Showy Purposes
Beauty Benefits
-
Making cosmetics
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification
Plant Benefits
Medicinal Uses
Bronchitis, Cold, Cough, Fever, Sore throat
Burns, Chronic fatigue, Cold, Diarrhea, Dysentry, Headache, Rheumatism
Part of Plant Used
Branch, Inner Bark, Leaves, Wood
Whole plant
Other Uses
Dugout canoes, Making deodorants, Medicinal oil, Paper pulp, Pulp can be used to make rope place mats and other goods, Used as an insecticide, Used to make baskets
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, Hedges, Screening / Wind Break
Feature Plant, Hedges, Mixed Border, Screening, Wind Break, Topiary, Bonsai, Espalier
Botanical Name
THUJA plicata
RHODODENDRON
Common Name
Giant Arborvitae, Green Giant Arborvitae, Western Arborvitae, Western Red Cedar
Rhododendron
In Hindi
Pacific redcedar
rhododendron
In German
Riesen-Lebensbaum
Rhododendron
In French
Thuja plicata
rhododendron
In Spanish
Thuja plicata
rododendro
In Greek
Thuja plicata
ροδοδάφνη
In Portuguese
Thuja plicata
rododendro
In Polish
Żywotnik olbrzymi
rododendron
In Latin
Thuja plicata
Rhododendron
Kingdom
Plantae
Plantae
Phylum
Pinophyta
Magnoliophyta
Class
Pinopsida
Magnoliopsida
Order
Pinales
Ericales
Family
Cupressaceae
Ericaceae
Genus
Thuja
Rhododendron
Clade
-
Angiosperms, Asterids, Eudicots
Tribe
-
Rhodoreae
Subfamily
-
Ericoideae
Number of Species
151024
1
27800
👆🏻