Life Span
Perennial
  
Perennial
  
Type
Tree
  
Fern
  
Origin
North America, United States, Northwestern United States, Alaska, California, Canada
  
Australia
  
Types
Not available
  
Cyathea cooperi, Dicksonia antarctica
  
Habitat
Lowland evergreen rainforest
  
Shady Edge, Woodland Garden Dappled Shade
  
USDA Hardiness Zone
4-7
  
10-11
  
AHS Heat Zone
7-1
  
12-7
  
Sunset Zone
3a, 3b, 4, 5, 6, 7, 14, 15, 16, 17
  
H1, H2, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
  
Habit
Pyramidal
  
Upright/Erect
  
Plant Size
  
  
Minimum Height
1,370.00 cm
  
31
Plant Color
  
  
Flower Color
Yellow, Red, Coral
  
Not Available
  
Flower Color Modifier
Bicolor
  
Bicolor
  
Fruit Color
Brown
  
Not Available
  
Leaf Color in Spring
Green, Dark Green
  
Light Green, Dark Green
  
Leaf Color in Summer
Dark Green
  
Light Green, Dark Green
  
Leaf Color in Fall
Dark Green
  
Light Green, Dark Green
  
Leaf Color in Winter
Not Available
  
Light Green, Dark Green
  
Shape
  
  
Leaf Shape
Ovate
  
Fern like
  
Thorns
No
  
No
  
Plant Season
Spring, Summer, Fall
  
Spring, Summer, Fall, Winter
  
Growing Conditions
  
  
Sunlight
Full Sun, Partial Sun, Partial shade
  
Full Sun
  
Growth Rate
Fast
  
Slow
  
Type of Soil
Loam, Sand
  
Clay, Loam, Sand
  
The pH of Soil
Acidic, Neutral, Alkaline
  
Acidic, Neutral, Alkaline
  
Soil Drainage
Average
  
Average
  
Bloom Time
Early Spring
  
Not Available
  
Repeat Bloomer
No
  
No
  
Tolerances
Maritime exposure, Salt water
  
Wet Site, Salt
  
Where to Plant?
Ground
  
Ground
  
How to Plant?
Layering, Seedlings
  
Spores
  
Plant Maintenance
Medium
  
Medium
  
Watering Plants
  
  
Watering Requirements
Average Water Needs
  
Average Water Needs, Do Not over Water, 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, Neutral, Alkaline
  
Acidic, Neutral, Alkaline
  
Soil Type
Loam, Sand
  
Clay, Loam, Sand
  
Soil Drainage Capacity
Average
  
Average
  
Sun Exposure
Full Sun, Partial Sun, Partial shade
  
Full Sun
  
Pruning
Remove damaged leaves, Remove dead branches, Remove dead leaves
  
Remove damaged leaves, Remove dead branches, Remove dead leaves, Remove dead or diseased plant parts, Remove deadheads
  
Fertilizers
All-Purpose Liquid Fertilizer, Nitrogen
  
10-10-10, Fertilize in early spring, fertilize in fall, fertilize in summer, General purpose liquid or granular fertilizer
  
Pests and Diseases
Not Available
  
Red blotch
  
Plant Tolerance
Maritime exposure, Salt water
  
Salt, Wet Site
  
Flowers
Insignificant
  
None
  
Flower Petal Number
Not Available
  
Single
  
Fruits
  
  
Showy Fruit
Yes
  
No
  
Edible Fruit
No
  
No
  
Fragrance
  
  
Fragrant Flower
No
  
No
  
Fragrant Fruit
No
  
No
  
Fragrant Leaf
No
  
No
  
Fragrant Bark/Stem
No
  
No
  
Showy Foliage
Yes
  
Yes
  
Showy Bark
Yes
  
No
  
Foliage Texture
Medium
  
Bold
  
Foliage Sheen
Glossy
  
Matte
  
Evergreen
No
  
No
  
Invasive
No
  
No
  
Self-Sowing
Yes
  
No
  
Attracts
Insects, Not Available
  
Birds, Butterflies, Hummingbirds
  
Allergy
Not Available
  
Carcinogenic, Thiaminase
  
Uses
  
  
Aesthetic Uses
Not Used For Aesthetic Purpose
  
Showy Purposes
  
Beauty Benefits
Skin Problems
  
Not Available
  
Edible Uses
Yes
  
Yes
  
Environmental Uses
Air purification, Prevent Soil Erosion, Shadow Tree
  
Air purification, soil stabilisation
  
Plant Benefits
  
  
Medicinal Uses
Anodyne, Appetizer, Astringent
  
Astringent
  
Part of Plant Used
Flowers, Inner Bark, Sap
  
Leaves, Stem, Tree trunks
  
Other Uses
Used as a dye, used for making charcoal, Used for making informal hedge
  
Showy Purposes
  
Used As Indoor Plant
No
  
No
  
Used As Outdoor Plant
Yes
  
Yes
  
Garden Design
Screening / Wind Break, Shade Trees
  
Container, Feature Plant, Tropical
  
Botanical Name
ALNUS rubra
  
CYATHEA australis
  
Common Name
Oregon Alder, Red Alder
  
Rough Tree Fern
  
In Hindi
red alder
  
Australian Tree Fern
  
In German
rot-Erle
  
Australian Baumfarn
  
In French
aulne rouge
  
Australian Arbre Fern
  
In Spanish
aliso rojo
  
Helecho de árbol australiano
  
In Greek
κόκκινη σκλήθρα
  
Αυστραλιανή Tree Fern
  
In Portuguese
amieiro vermelho
  
Australian Tree Fern
  
In Polish
czerwony olcha
  
Australijski Drzewo paproci
  
In Latin
red alnus
  
Fern tree Australia
  
Kingdom
Plantae
  
Plantae
  
Phylum
Magnoliophyta
  
Pteridophyta
  
Class
Magnoliopsida
  
Pteridopsida
  
Order
Fagales
  
Cyatheales
  
Family
Betulaceae
  
Cyatheaceae
  
Genus
Alnus
  
Cyathea
  
Clade
Angiosperms, Eudicots, Rosids
  
Not Available
  
Tribe
Not Available
  
Not Available
  
Subfamily
Not Available
  
Not Available
  
Number of Species
Not Available