Life Span
Perennial
Perennial
Type
Needled or Scaled Evergreen
Tree
Origin
Northwestern United States, Canada
North America, United States, Northwestern United States, Alaska, California, Canada
Types
-
-
Number of Varieties
630
0
40000
👆🏻
Habitat
Lowland, Moist Soils, Swamps
Lowland evergreen rainforest
USDA Hardiness Zone
5-74-7
0
99
👆🏻
AHS Heat Zone
8-1
7-1
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
3a, 3b, 4, 5, 6, 7, 14, 15, 16, 17
Habit
Pyramidal
Pyramidal
Plant Size
Minimum Height
1,520.00 cm1,370.00 cm
0
3900
👆🏻
Minimum Width
760.00 cm610.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Light Yellow
Yellow, Red, Coral
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Brown, Sienna
Brown
Leaf Color in Spring
Dark Green
Green, Dark Green
Leaf Color in Summer
Dark Green
Dark Green
Leaf Color in Fall
Dark Green
Dark Green
Leaf Color in Winter
Dark Green, Bronze
-
Shape
Leaf Shape
Scale-like imbricate
Ovate
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun, Partial shade
Growth Rate
Fast
Fast
Type of Soil
Loam
Loam, Sand
The pH of Soil
Acidic, Neutral
Acidic, Neutral, Alkaline
Soil Drainage
Well drained
Average
Bloom Time
Spring
Early Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Pollution, Soil Compaction
Maritime exposure, Salt water
Where to Plant?
Ground
Ground
How to Plant?
Cuttings, Hardwood Cuttings, Rooted stem cutting, Seedlings
Layering, Seedlings
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
Average Water Needs
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Acidic, Neutral, Alkaline
Acidic, Neutral, Alkaline
Soil Type
Clay, Loam, Sand
Loam, Sand
Soil Drainage Capacity
Well drained
Average
Sun Exposure
Full Sun
Full Sun, Partial Sun, Partial shade
Pruning
Remove damaged leaves, Remove dead branches, Remove dead leaves
Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
All-Purpose Liquid Fertilizer
All-Purpose Liquid Fertilizer, Nitrogen
Pests and Diseases
Armillaria root rot, Bark beetles
-
Plant Tolerance
Drought
Maritime exposure, Salt water
Flowers
Insignificant
Insignificant
Flower Petal Number
-
-
Fruits
Showy Fruit
✔
✘
✔
✘
Edible Fruit
✔
✘
✔
✘
Fragrance
Fragrant Flower
✔
✘
✔
✘
Fragrant Fruit
✔
✘
✔
✘
Fragrant Leaf
✔
✘
✔
✘
Fragrant Bark/Stem
✔
✘
✔
✘
Showy Foliage
✔
✘
✔
✘
Showy Bark
✔
✘
✔
✘
Foliage Texture
Fine
Medium
Foliage Sheen
Glossy
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
-
Insects
Allergy
Asthma, contact allergic dermatitis, Urticaria
-
Uses
Aesthetic Uses
-
-
Beauty Benefits
-
Skin Problems
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification
Air purification, Prevent Soil Erosion, Shadow Tree
Plant Benefits
Medicinal Uses
Bronchitis, Cold, Cough, Fever, Sore throat
Anodyne, Appetizer, Astringent
Part of Plant Used
Branch, Inner Bark, Leaves, Wood
Flowers, Inner Bark, Sap
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
Used as a dye, used for making charcoal, Used for making informal hedge
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Hedges, Screening / Wind Break
Screening / Wind Break, Shade Trees
Botanical Name
THUJA plicata
ALNUS rubra
Common Name
Giant Arborvitae, Green Giant Arborvitae, Western Arborvitae, Western Red Cedar
Oregon Alder, Red Alder
In Hindi
Pacific redcedar
red alder
In German
Riesen-Lebensbaum
rot-Erle
In French
Thuja plicata
aulne rouge
In Spanish
Thuja plicata
aliso rojo
In Greek
Thuja plicata
κόκκινη σκλήθρα
In Portuguese
Thuja plicata
amieiro vermelho
In Polish
Żywotnik olbrzymi
czerwony olcha
In Latin
Thuja plicata
red alnus
Kingdom
Plantae
Plantae
Phylum
Pinophyta
Magnoliophyta
Class
Pinopsida
Magnoliopsida
Order
Pinales
Fagales
Family
Cupressaceae
Betulaceae
Genus
Thuja
Alnus
Clade
-
Angiosperms, Eudicots, Rosids
Tribe
-
-
Subfamily
-
-
Number of Species
1535
1
27800
👆🏻