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
United States, California
Types
Black walnut
-
Number of Varieties
308
0
40000
👆🏻
Habitat
Cold Regions, Hills, Hillside
Woodland Garden Canopy
USDA Hardiness Zone
4-86-9
0
99
👆🏻
AHS Heat Zone
7-1
9-1
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, 8, 9, 10, 11, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Habit
Oval or Rounded
Spreading
Plant Size
Minimum Height
1,220.00 cm1,520.00 cm
0
3900
👆🏻
Minimum Width
1,220.00 cm1,370.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Yellow green
Red, Yellow green
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Green, Brown
-
Leaf Color in Spring
Green, Copper
Green, Blue Green
Leaf Color in Summer
Dark Green
Green, Blue Green
Leaf Color in Fall
Dark Green, Yellow green
Yellow, Orange, Pink
Leaf Color in Winter
-
-
Shape
Leaf Shape
Pinnate
Irregular
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun
Full Sun, Partial Sun
Growth Rate
Medium
Slow
Type of Soil
Clay, Loam, Sand
-
The pH of Soil
Acidic, Neutral
-
Soil Drainage
Well drained
-
Bloom Time
Late Spring, Early Summer
Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought, Frost
Drought
Where to Plant?
Ground
Ground
How to Plant?
Budding, Seedlings
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
-
Soil Type
Clay, Loam, Sand
-
Soil Drainage Capacity
Well drained
-
Sun Exposure
Full Sun
Full Sun, Partial Sun
Pruning
In Early Autumn, Prune to stimulate growth, Remove dead leaves
Remove damaged leaves, Remove dead branches, Remove dead leaves, Remove dead or diseased plant parts
Fertilizers
fertilize in spring, Nitrogen
All-Purpose Liquid Fertilizer
Pests and Diseases
Anthracnose, Armillaria mellea, Blight, Caterpillars, Crown gall, Crown rot, fungus, Powdery mildew, Red blotch
Red blotch
Plant Tolerance
Drought, Frost
Drought
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
-
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
-
Birds
Allergy
Severe allergen
Pollen
Uses
Aesthetic Uses
-
Borders
Beauty Benefits
Good for skin and hair
-
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, Shadow Tree, soil erosion prevension on hill slopes, Wildlife, Windbreak
Plant Benefits
Medicinal Uses
Anemia, Asthma, Cancer, Cough, Diarrhea, Menstrual Disorders, Urinary tract problems
Astringent, Diarrhea, Dysentry, Haemorrhages, Poultice, Sore Eyes, Sore throat
Part of Plant Used
Fruits, Seeds
Leaves, Seeds, Wood
Other Uses
Economic Purpose, Used as a dye, Used as firewood, Used As Food, Used for its medicinal properties
Adhesive, Basketary, Buttons, Repellent, Tannin, Used as fuel, Used for woodware
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Edible, Feature Plant, Shade Trees
Feature Plant, Shade Trees, Street Trees
Botanical Name
JUGLANS regia
QUERCUS douglasii
Common Name
English Walnut
Blue Oak
In Hindi
अंग्रेजी अखरोट
Blue Oak Tree
In German
Englisch Walnut
Blaue Eiche
In French
Anglais Noyer
Bleu Oak Tree
In Spanish
Inglés nuez
Azul del árbol de roble
In Greek
Αγγλικά Καρυδιά
Μπλε Oak Tree
In Portuguese
Inglês Walnut
Carvalho azul
In Polish
orzech włoski
Niebieski Oak Tree
In Latin
Nucis anglicus
Blue quercum ligno
Kingdom
Plantae
Plantae
Phylum
Tracheophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Fagales
Fagales
Family
Juglandaceae
Fagaceae
Genus
Juglans
Quercus
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Eudicots, Rosids
Tribe
Juglandeae
-
Subfamily
Juglandoideae
-
Number of Species
2120
1
27800
👆🏻