Life Span
Perennial
Perennial
Type
Tree
Perennial
Origin
North America, United States, Northwestern United States, Alaska, California, Canada
North America, United States, Northeastern United States, Mid-Atlantic United States, Southeastern United States, Canada
Types
-
-
Number of Varieties
302
0
40000
👆🏻
Habitat
Lowland evergreen rainforest
gardens, Hardwood forests
USDA Hardiness Zone
4-75-7
0
99
👆🏻
AHS Heat Zone
7-1
7-5
Sunset Zone
3a, 3b, 4, 5, 6, 7, 14, 15, 16, 17
2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10
Habit
Pyramidal
Clump-Forming
Plant Size
Minimum Height
1,370.00 cm15.20 cm
0
3900
👆🏻
Minimum Width
610.00 cm12.70 cm
0
6350
👆🏻
Plant Color
Flower Color
Yellow, Red, Coral
White
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Brown
Light Green
Leaf Color in Spring
Green, Dark Green
Green, Blue Green
Leaf Color in Summer
Dark Green
Green, Gray Green
Leaf Color in Fall
Dark Green
Green, Gray Green
Leaf Color in Winter
-
Light Green
Shape
Leaf Shape
Ovate
Butterfly shaped
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall
Spring, Summer, Fall
Growing Conditions
Sunlight
Full Sun, Partial Sun, Partial shade
Partial shade, Full Shade
Growth Rate
Fast
Slow
Type of Soil
Loam, Sand
Clay, Loam
The pH of Soil
Acidic, Neutral, Alkaline
Neutral, Alkaline
Soil Drainage
Average
Average
Bloom Time
Early Spring
Late Spring, Early Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Maritime exposure, Salt water
Drought
Where to Plant?
Ground
Ground, Pot
How to Plant?
Layering, Seedlings
Divison, Seedlings, Stem Planting
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Average Water Needs
Medium
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Acidic, Neutral, Alkaline
Neutral, Alkaline
Soil Type
Loam, Sand
Clay, Loam
Soil Drainage Capacity
Average
Average
Sun Exposure
Full Sun, Partial Sun, Partial shade
Partial shade, Full Shade
Pruning
Remove damaged leaves, Remove dead branches, Remove dead leaves
Remove deadheads, Requires very little pruning
Fertilizers
All-Purpose Liquid Fertilizer, Nitrogen
No fertilizers needed
Pests and Diseases
-
Pests and diseases free, Red blotch
Plant Tolerance
Maritime exposure, Salt water
Drought
Flowers
✔
✘
✔
✘
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
Glossy
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Insects
Bees, Butterflies
Allergy
-
-
Uses
Aesthetic Uses
-
Showy Purposes
Beauty Benefits
Skin Problems
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification, Prevent Soil Erosion, Shadow Tree
Air purification
Plant Benefits
Medicinal Uses
Anodyne, Appetizer, Astringent
Cancer, Diuretic
Part of Plant Used
Flowers, Inner Bark, Sap
Flowers, Root
Other Uses
Used as a dye, used for making charcoal, Used for making informal hedge
-
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Screening / Wind Break, Shade Trees
Feature Plant, Groundcover
Botanical Name
ALNUS rubra
JEFFERSONIA diphylla
Common Name
Oregon Alder, Red Alder
-
In Hindi
red alder
Twinleaf
In German
rot-Erle
Twinleaf
In French
aulne rouge
Twinleaf
In Spanish
aliso rojo
Twinleaf
In Greek
κόκκινη σκλήθρα
Twinleaf
In Portuguese
amieiro vermelho
Twinleaf
In Polish
czerwony olcha
Twinleaf
In Latin
red alnus
Twinleaf
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Tracheophyta
Class
Magnoliopsida
Magnoliopsida
Order
Fagales
Ranunculales
Family
Betulaceae
Berberidaceae
Genus
Alnus
Jeffersonia
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Eudicots
Tribe
-
-
Subfamily
-
-
Number of Species
352
1
27800
👆🏻