Life Span
Perennial
Annual and Perennial
Type
Tree
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
Europe, Northern Europe, Western Europe, United Kingdom
Types
Juglans nigra
M. v. brevipetala
M. v. collina
M. v. frozen
M. v. grandiflora
M. v. paui
M. v. verna
M. v. japonica
Number of Varieties
107
0
40000
👆🏻
Habitat
bottomlands, Moist woods
gardens, Grassland, Prairies, Suburban areas, Tropical regions
USDA Hardiness Zone
4-94-7
0
99
👆🏻
AHS Heat Zone
9-3
8-1
Sunset Zone
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21
4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Habit
Oval or Rounded
Mat-forming
Plant Size
Minimum Height
1,830.00 cm7.60 cm
0
3900
👆🏻
Minimum Width
1,830.00 cm20.30 cm
0
6350
👆🏻
Plant Color
Flower Color
Yellow green
White
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Green, Chocolate
-
Leaf Color in Spring
Green
Green
Leaf Color in Summer
Green, Dark Green
Green
Leaf Color in Fall
Yellow, Dark Green, Yellow green, Gold
Green
Leaf Color in Winter
-
Light Green
Shape
Leaf Shape
Pinnate
Tiny
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall
Spring, Summer, Fall, Winter
Growing Conditions
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
Spring, Late Spring, Early Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
-
Drought
Where to Plant?
Ground
Ground, Pot
How to Plant?
Seedlings
Seedlings, Stem Planting
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Average Water Needs, Requires regular watering
Keep ground moist, Never Over-water, Requires watering in the growing season, Water more in summer
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
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, Remove deadheads, Requires very little pruning
Fertilizers
Apply NPK fertilizer at the ratio of 6-24-24
All-Purpose Liquid Fertilizer
Pests and Diseases
Red blotch
Fungal Diseases
Plant Tolerance
-
Drought
Flowers
✔
✘
✔
✘
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
Coarse
Fine
Foliage Sheen
Glossy
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Birds, Butterflies
Butterflies
Allergy
Anaphylaxis, Toxic
-
Uses
Aesthetic Uses
-
Beautification
Beauty Benefits
Good for skin
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification, Shadow Tree
Air purification
Plant Benefits
Medicinal Uses
Cancer, Coronary diseases, Cures constipation, Diarrhea, Diphtheria, High cholestrol, Immunity, Intestinal worms, Leukemia, Skin wounds, Sore throat, Syphilis, Use as a gargle
Burns, Thyroid problems, tuberculosis
Part of Plant Used
Fruits
Flowers, Leaves
Other Uses
Used As Food, Used as Ornamental plant
Culinary use, Used As Food
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Shade Trees
Alpine, Container, Edging, Groundcover, Lawns and Turf, Mixed Border, Rock Garden, Wall
Botanical Name
JUGLANS nigra
MINUARTIA verna
Common Name
Black Walnut
Irish Moss
In Hindi
काले अखरोट के पेड़
आयरिश काई
In German
Schwarz Walnussbaum
Irish Moss
In French
Noir noyer
Irish Moss
In Spanish
nogal negro
musgo de irlanda
In Greek
Μαύρη καρυδιά
Irish Moss
In Portuguese
nogueira preta
Moss irlandês
In Polish
Czarny orzech drzewo
mech irlandzki
In Latin
Niger walnut tree
Irish Moss
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Tracheophyta
Class
Magnoliopsida
-
Order
Juglandales
Caryophyllales
Family
Juglandaceae
Caryophyllaceae
Genus
Juglans
Minuartia
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Core eudicots, Eudicots
Tribe
Juglandeae
-
Subfamily
Juglandinae
-
Number of Species
1650
1
27800
👆🏻