Life Span
Perennial
Perennial
Type
Tree
Ornamental Grasses and Bamboo
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 Europe, Western Europe, Mediterranean
Types
Juglans nigra
-
Number of Varieties
1010
0
40000
👆🏻
Habitat
bottomlands, Moist woods
Desert, Dry areas, Dry Forest, Rocky areas
USDA Hardiness Zone
4-94-9
0
99
👆🏻
AHS Heat Zone
9-3
9 - 1
Sunset Zone
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21
1a, 1b, 2a, 2b, 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
Cushion/Mound-forming
Plant Size
Minimum Height
1,830.00 cm45.00 cm
0
3900
👆🏻
Minimum Width
1,830.00 cm60.96 cm
0
6350
👆🏻
Plant Color
Flower Color
Yellow green
Blue Green
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Green, Chocolate
-
Leaf Color in Spring
Green
Blue Green, Silver, Gray
Leaf Color in Summer
Green, Dark Green
Light Green
Leaf Color in Fall
Yellow, Dark Green, Yellow green, Gold
Blue Green, Silver, Gray
Leaf Color in Winter
-
Blue Green, Tan, Silver, Gray
Shape
Leaf Shape
Pinnate
Grass like
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun
Full Sun
Growth Rate
Medium
Medium
Type of Soil
Clay, Loam, Sand
Clay, Loam, Sand
The pH of Soil
Acidic, Neutral
Neutral, Alkaline
Soil Drainage
Well drained
Well drained
Bloom Time
Late Spring, Early Summer
Late Spring, Early Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
-
Salt
Where to Plant?
Ground
Container, Ground
How to Plant?
Seedlings
Rooted stem cutting, Seedlings, Stem Planting
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Average Water Needs, Requires regular watering
Average Water Needs, occasional watering once established, Requires regular watering, Requires watering in the growing season
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Acidic, Neutral
Neutral, Alkaline
Soil Type
Clay, Loam, Sand
Clay, Loam, Sand
Soil Drainage Capacity
Well drained
Well drained
Sun Exposure
Full Sun
Full 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
Cut or pinch the stems, Pinch Tips, 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
-
Salt
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
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Birds, Butterflies
Butterflies, Hummingbirds
Allergy
Anaphylaxis, Toxic
Asthma, Itchiness, Rash, Rhinitis
Uses
Aesthetic Uses
-
Ground Cover
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
-
Part of Plant Used
Fruits
Stem
Other Uses
Used As Food, Used as Ornamental plant
Used as Ornamental plant
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Feature Plant, Shade Trees
Container, Edging, Mixed Border, Rock Garden / Wall
Botanical Name
JUGLANS nigra
HELICTOTRICHON sempervirens
Common Name
Black Walnut
Blue Oat Grass
In Hindi
काले अखरोट के पेड़
ब्लू जई घास
In German
Schwarz Walnussbaum
Blau Ährengras
In French
Noir noyer
Bleu Oat Grass
In Spanish
nogal negro
Azul hierba de avena
In Greek
Μαύρη καρυδιά
Μπλε βρώμης Grass
In Portuguese
nogueira preta
Azul Aveia
In Polish
Czarny orzech drzewo
Niebieski Owies trawa
In Latin
Niger walnut tree
Blue Oat Grass
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Liliopsida
Order
Juglandales
Poales
Family
Juglandaceae
Poaceae
Genus
Juglans
Helictotrichon
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Commelinids, Monocots
Tribe
Juglandeae
Aveneae
Subfamily
Juglandinae
Pooideae
Number of Species
1670
1
27800
👆🏻