Life Span
Perennial
Perennial
Type
Tree
Tree
Origin
Europe, Eastern Europe, Southern Europe, Russia/Siberia, Iran, Central Asia, Southern Asia, Western Asia, India, Nepal, China
North America, United States, Northwestern United States, Alaska, California, Canada
Types
Black walnut
-
Number of Varieties
3030
0
40000
👆🏻
Habitat
Cold Regions, Hills, Hillside
Lowland evergreen rainforest
USDA Hardiness Zone
4-84-7
0
99
👆🏻
AHS Heat Zone
7-1
7-1
Sunset Zone
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21
3a, 3b, 4, 5, 6, 7, 14, 15, 16, 17
Habit
Oval or Rounded
Pyramidal
Plant Size
Minimum Height
1,220.00 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, Copper
Green, Dark Green
Leaf Color in Summer
Dark Green
Dark Green
Leaf Color in Fall
Dark 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
Medium
Fast
Type of Soil
Clay, Loam, Sand
Loam, Sand
The pH of Soil
Acidic, Neutral
Acidic, Neutral, Alkaline
Soil Drainage
Well drained
Average
Bloom Time
Late Spring, Early Summer
Early Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought, Frost
Maritime exposure, Salt water
Where to Plant?
Ground
Ground
How to Plant?
Budding, Seedlings
Layering, Seedlings
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Requires watering in the growing season, Water Deeply, Water when top layer of soil becomes dry
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
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
In Early Autumn, Prune to stimulate growth, Remove dead leaves
Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
fertilize in spring, Nitrogen
All-Purpose Liquid Fertilizer, Nitrogen
Pests and Diseases
Anthracnose, Armillaria mellea, Blight, Caterpillars, Crown gall, Crown rot, fungus, Powdery mildew, Red blotch
-
Plant Tolerance
Drought, Frost
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
Coarse
Medium
Foliage Sheen
Glossy
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
-
Insects
Allergy
Severe allergen
-
Uses
Aesthetic Uses
-
-
Beauty Benefits
Good for skin and hair
Skin Problems
Edible Uses
✔
✘
✔
✘
Environmental Uses
Absorbs greenhouse gases, Absorbs huge amounts of CO2, Air purification, Amazing growth rate, Erosion control, Food for birds, Food for insects, Forms dense stands, Nesting sites for birds, Prevent Soil Erosion, Shadow Tree, Shelter for wildlife, Windbreak
Air purification, Prevent Soil Erosion, Shadow Tree
Plant Benefits
Medicinal Uses
Anemia, Asthma, Cancer, Cough, Diarrhea, Menstrual Disorders, Urinary tract problems
Anodyne, Appetizer, Astringent
Part of Plant Used
Fruits, Seeds
Flowers, Inner Bark, Sap
Other Uses
Economic Purpose, Used as a dye, Used as firewood, Used As Food, Used for its medicinal properties
Used as a dye, used for making charcoal, Used for making informal hedge
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Edible, Feature Plant, Shade Trees
Screening / Wind Break, Shade Trees
Botanical Name
JUGLANS regia
ALNUS rubra
Common Name
English Walnut
Oregon Alder, Red Alder
In Hindi
अंग्रेजी अखरोट
red alder
In German
Englisch Walnut
rot-Erle
In French
Anglais Noyer
aulne rouge
In Spanish
Inglés nuez
aliso rojo
In Greek
Αγγλικά Καρυδιά
κόκκινη σκλήθρα
In Portuguese
Inglês Walnut
amieiro vermelho
In Polish
orzech włoski
czerwony olcha
In Latin
Nucis anglicus
red alnus
Kingdom
Plantae
Plantae
Phylum
Tracheophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Fagales
Fagales
Family
Juglandaceae
Betulaceae
Genus
Juglans
Alnus
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Eudicots, Rosids
Tribe
Juglandeae
-
Subfamily
Juglandoideae
-
Number of Species
2135
1
27800
👆🏻