Life Span
Perennial
Perennial
Type
Tree
Tree
Origin
Asia
North America, United States, Northwestern United States, Alaska, California, Canada
Types
Pterocarya fraxinifolia, Pterocarya stenoptera
-
Number of Varieties
330
0
40000
👆🏻
Habitat
Boggy areas, Mixed deciduous forest
Lowland evergreen rainforest
USDA Hardiness Zone
6-94-7
0
99
👆🏻
AHS Heat Zone
9-1
7-1
Sunset Zone
4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
3a, 3b, 4, 5, 6, 7, 14, 15, 16, 17
Habit
Oval or Rounded
Pyramidal
Plant Size
Minimum Height
1,520.00 cm1,370.00 cm
0
3900
👆🏻
Minimum Width
1,220.00 cm610.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Yellow green
Yellow, Red, Coral
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Green, Brown
Brown
Leaf Color in Spring
Green
Green, Dark Green
Leaf Color in Summer
Green
Dark Green
Leaf Color in Fall
Green, Yellow green
Dark Green
Leaf Color in Winter
-
-
Shape
Leaf Shape
Pinnate
Ovate
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall
Spring, Summer, Fall
Growing Conditions
Sunlight
Full Sun
Full Sun, Partial Sun, Partial shade
Growth Rate
Fast
Fast
Type of Soil
Clay, Loam, Sand
Loam, Sand
The pH of Soil
Acidic, Neutral, Alkaline
Acidic, Neutral, Alkaline
Soil Drainage
Well drained
Average
Bloom Time
Spring, Late Spring
Early Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought, Soil Compaction
Maritime exposure, Salt water
Where to Plant?
Ground
Ground
How to Plant?
Divison, Stem Cutting
Layering, Seedlings
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Needs less watering
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 all suckers, Remove damaged leaves, Remove dead branches, Remove dead leaves
Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
All-Purpose Liquid Fertilizer, Nitrogen, Phosphorous
All-Purpose Liquid Fertilizer, Nitrogen
Pests and Diseases
-
-
Plant Tolerance
Drought, Soil Compaction
Maritime exposure, Salt water
Flowers
Showy
Insignificant
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
Medium
Foliage Sheen
Glossy
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Birds, Butterflies, Hummingbirds
Insects
Allergy
-
-
Uses
Aesthetic Uses
-
-
Beauty Benefits
-
Skin Problems
Edible Uses
✔
✘
✔
✘
Environmental Uses
-
Air purification, Prevent Soil Erosion, Shadow Tree
Plant Benefits
Medicinal Uses
Diaphoretic
Anodyne, Appetizer, Astringent
Part of Plant Used
Bark, Fruits, Seeds
Flowers, Inner Bark, Sap
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
Feature Plant, Shade Trees
Screening / Wind Break, Shade Trees
Botanical Name
Pterocarya fraxinifolia
ALNUS rubra
Common Name
Caucasian wingnut, Caucasian walnut
Oregon Alder, Red Alder
In Hindi
wingnut
red alder
In German
wingnut
rot-Erle
In French
wingnut
aulne rouge
In Spanish
wingnut
aliso rojo
In Greek
wingnut
κόκκινη σκλήθρα
In Portuguese
wingnut
amieiro vermelho
In Polish
Wingnut
czerwony olcha
In Latin
wingnut
red alnus
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Fagales
Fagales
Family
Juglandaceae
Betulaceae
Genus
Pterocarya
Alnus
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Eudicots, Rosids
Tribe
Juglandeae
-
Subfamily
Juglandoideae
-
Number of Species
635
1
27800
👆🏻