Life Span
Perennial
Perennial
Origin
United States, Northeastern United States, Mid-Atlantic United States, Southeastern United States, North-Central United States, Central United States, South-Central United States, Texas, Canada
Central Asia, India, Nepal
Types
Juglans nigra
White oak, Bluff oak, Muller oak
Habitat
bottomlands, Moist woods
Clay soil areas, Dry areas, Sandy areas
USDA Hardiness Zone
4-9
6-9
Sunset Zone
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21
H1, 7, 8, 9, 14, 15, 16, 17, 20, 21, 22, 23, 24
Habit
Oval or Rounded
Oval or Rounded
Flower Color
Yellow green
Red, Yellow green
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Green, Chocolate
Sandy Brown, Sienna
Leaf Color in Spring
Green
Green, Light Green, Gray
Leaf Color in Summer
Green, Dark Green
Green, Gray
Leaf Color in Fall
Yellow, Dark Green, Yellow green, Gold
Green, Dark Green, Gray
Leaf Color in Winter
-
Dark Green, Gray
Leaf Shape
Pinnate
broad, flat
Plant Season
Spring, Summer, Fall
Spring, Summer, Fall, Winter
Sunlight
Full Sun
Full Sun, Partial Sun
Growth Rate
Medium
Medium
Type of Soil
Clay, Loam, Sand
Loam
The pH of Soil
Acidic, Neutral
Acidic
Soil Drainage
Well drained
Average
Bloom Time
Late Spring, Early Summer
Spring
Where to Plant?
Ground
Ground
How to Plant?
Seedlings
Seedlings, Transplanting
Plant Maintenance
Medium
Medium
Watering Requirements
Average Water Needs, Requires regular watering
Average Water Needs
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil pH
Acidic, Neutral
Acidic
Soil Type
Clay, Loam, Sand
Loam
Soil Drainage Capacity
Well drained
Average
Sun Exposure
Full Sun
Full Sun, Partial Sun
Pruning
Prune in early spring, Prune when plant is dormant, Remove branches, Remove damaged leaves, Remove dead branches, Remove dead leaves, Remove dead or diseased plant parts
Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
Apply NPK fertilizer at the ratio of 6-24-24
All-Purpose Liquid Fertilizer
Pests and Diseases
Red blotch
Red blotch
Plant Tolerance
-
Drought
Fragrant Bark/Stem
Yes
No
Foliage Texture
Coarse
Medium
Foliage Sheen
Glossy
Glossy
Attracts
Birds, Butterflies
Birds
Allergy
Anaphylaxis, Toxic
Pollen
Aesthetic Uses
-
Showy Purposes
Beauty Benefits
Good for skin
-
Environmental Uses
Air purification, Shadow Tree
Air purification, Nesting sites for birds, Shadow Tree, Shelter for wildlife, Wildlife
Medicinal Uses
Cancer, Coronary diseases, Cures constipation, Diarrhea, Diphtheria, High cholestrol, Immunity, Intestinal worms, Leukemia, Skin wounds, Sore throat, Syphilis, Use as a gargle
Chronic fatigue, Cramps, Diarrhea, Dysentry, gallstones, Haemorrhages, Menstrual Cramps
Part of Plant Used
Fruits
Leaves, Seeds, Wood
Other Uses
Used As Food, Used as Ornamental plant
Used as firewood, used for making charcoal
Used As Indoor Plant
No
No
Used As Outdoor Plant
Yes
Yes
Garden Design
Feature Plant, Shade Trees
Feature Plant, Shade Trees
Botanical Name
JUGLANS nigra
QUERCUS leucotrichophora
Common Name
Black Walnut
Banj Oak, Blackjack Oak, Himalayan Oak
In Hindi
काले अखरोट के पेड़
Blackjack Oak Tree
In German
Schwarz Walnussbaum
Blackjack Oak Tree
In French
Noir noyer
Blackjack Oak Tree
In Spanish
nogal negro
Blackjack Oak Tree
In Greek
Μαύρη καρυδιά
Blackjack Oak Tree
In Portuguese
nogueira preta
Blackjack Carvalho
In Polish
Czarny orzech drzewo
Blackjack Oak Tree
In Latin
Niger walnut tree
Blackjack quercum ligno
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Juglandales
Fagales
Family
Juglandaceae
Fagaceae
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Eudicots, Rosids
Season and Care of Black Walnut and Blackjack Oak
Season and care of Black Walnut and Blackjack Oak is important to know. While considering everything about Black Walnut and Blackjack Oak Care, growing season is an essential factor. Black Walnut season is Spring, Summer and Fall and Blackjack Oak season is Spring, Summer and Fall. The type of soil for Black Walnut is Clay, Loam, Sand and for Blackjack Oak is Loam while the PH of soil for Black Walnut is Acidic, Neutral and for Blackjack Oak is Acidic.
Black Walnut and Blackjack Oak Physical Information
Black Walnut and Blackjack Oak physical information is very important for comparison. Black Walnut height is 1,830.00 cm and width 1,830.00 cm whereas Blackjack Oak height is 2,286.00 cm and width 1,219.20 cm. The color specification of Black Walnut and Blackjack Oak are as follows:
Black Walnut flower color: Yellow green
Black Walnut leaf color: Green
Blackjack Oak flower color: Red and Yellow green
- Blackjack Oak leaf color: Green, Light Green and Gray
Care of Black Walnut and Blackjack Oak
Care of Black Walnut and Blackjack Oak include pruning, fertilizers, watering etc. Black Walnut pruning is done Prune in early spring, Prune when plant is dormant, Remove branches, Remove damaged leaves, Remove dead branches, Remove dead leaves and Remove dead or diseased plant parts and Blackjack Oak pruning is done Remove damaged leaves, Remove dead branches and Remove dead leaves. In summer Black Walnut needs Lots of watering and in winter, it needs Average Water. Whereas, in summer Blackjack Oak needs Lots of watering and in winter, it needs Average Water.