Life Span
Perennial
Perennial
Type
Tree
Tender 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
Southern Africa
Types
Juglans nigra
Perennial
Habitat
bottomlands, Moist woods
Desert, Mediterranean region, Subtropical climates, Temperate Regions
USDA Hardiness Zone
4-9
8-10
Sunset Zone
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21
H1, H2, 8, 9, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Habit
Oval or Rounded
Clump-Forming
Flower Color
Yellow green
Yellow, Light Yellow, Brown
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Green, Chocolate
Green, Brown
Leaf Color in Spring
Green
Green, Gray Green
Leaf Color in Summer
Green, Dark Green
Green, Gray Green
Leaf Color in Fall
Yellow, Dark Green, Yellow green, Gold
Green, Gray Green
Leaf Color in Winter
-
Light Green
Leaf Shape
Pinnate
Grass like
Plant Season
Spring, Summer, Fall
Spring, Summer, Fall, Winter
Sunlight
Full Sun
Full Sun, Partial Sun, Partial shade
Growth Rate
Medium
Medium
Type of Soil
Clay, Loam, Sand
Clay, Loam, Sand
The pH of Soil
Acidic, Neutral
Acidic, Neutral, Alkaline
Soil Drainage
Well drained
Average
Bloom Time
Late Spring, Early Summer
Indeterminate
Where to Plant?
Ground
Container, Ground, Pot
How to Plant?
Seedlings
Rhizome division, Seedlings
Plant Maintenance
Medium
Medium
Watering Requirements
Average Water Needs, Requires regular watering
Requires regular watering
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil pH
Acidic, Neutral
Acidic, Neutral, Alkaline
Soil Type
Clay, Loam, Sand
Clay, Loam, Sand
Soil Drainage Capacity
Well drained
Average
Sun Exposure
Full Sun
Full Sun, Partial Sun, Partial shade
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 dead leaves
Fertilizers
Apply NPK fertilizer at the ratio of 6-24-24
Any balanced general purpose fertilizer
Pests and Diseases
Red blotch
Nematodes, Scale
Plant Tolerance
-
Drought
Flowers
Insignificant
Showy
Flower Petal Number
-
Single
Fragrant Bark/Stem
Yes
No
Foliage Texture
Coarse
Medium
Foliage Sheen
Glossy
Matte
Attracts
Birds, Butterflies
Bees, Birds, Butterflies
Allergy
Anaphylaxis, Toxic
Skin irritation
Aesthetic Uses
-
Showy Purposes
Beauty Benefits
Good for skin
-
Environmental Uses
Air purification, Shadow Tree
Ethnobotanic
Medicinal Uses
Cancer, Coronary diseases, Cures constipation, Diarrhea, Diphtheria, High cholestrol, Immunity, Intestinal worms, Leukemia, Skin wounds, Sore throat, Syphilis, Use as a gargle
-
Part of Plant Used
Fruits
Root
Other Uses
Used As Food, Used as Ornamental plant
Roots were worn to protect and strengthen the wearer, Used as Ornamental plant
Used As Indoor Plant
No
No
Used As Outdoor Plant
Yes
Yes
Garden Design
Feature Plant, Shade Trees
Bog Garden, Container, Feature Plant, Mixed Border, Tropical, Water Gardens
Botanical Name
JUGLANS nigra
DIETES bicolor
Common Name
Black Walnut
African iris, Fortnight lily
In Hindi
काले अखरोट के पेड़
African Iris
In German
Schwarz Walnussbaum
Afrikanische Iris
In French
Noir noyer
African Iris
In Spanish
nogal negro
Iris africano
In Greek
Μαύρη καρυδιά
Αφρικανική Iris
In Portuguese
nogueira preta
Iris africano
In Polish
Czarny orzech drzewo
Afryki Iris
In Latin
Niger walnut tree
African Iris
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Juglandales
Asparagales
Family
Juglandaceae
Iridaceae
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Monocots
Subfamily
Juglandinae
Iridoideae
Season and Care of Black Walnut and African Iris
Season and care of Black Walnut and African Iris is important to know. While considering everything about Black Walnut and African Iris Care, growing season is an essential factor. Black Walnut season is Spring, Summer and Fall and African Iris season is Spring, Summer and Fall. The type of soil for Black Walnut is Clay, Loam, Sand and for African Iris is Clay, Loam, Sand while the PH of soil for Black Walnut is Acidic, Neutral and for African Iris is Acidic, Neutral, Alkaline.
Black Walnut and African Iris Physical Information
Black Walnut and African Iris physical information is very important for comparison. Black Walnut height is 1,830.00 cm and width 1,830.00 cm whereas African Iris height is 61.30 cm and width 30.50 cm. The color specification of Black Walnut and African Iris are as follows:
Black Walnut flower color: Yellow green
Black Walnut leaf color: Green
African Iris flower color: Yellow, Light Yellow and Brown
- African Iris leaf color: Green and Gray Green
Care of Black Walnut and African Iris
Care of Black Walnut and African Iris 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 African Iris pruning is done Remove dead leaves. In summer Black Walnut needs Lots of watering and in winter, it needs Average Water. Whereas, in summer African Iris needs Lots of watering and in winter, it needs Average Water.