Life Span
Perennial
Perennial
Type
Tree
Tree
Origin
Southeastern United States, Mexico, Caribbean, Central America
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
Types
-
Juglans nigra
Number of Varieties
110
0
40000
👆🏻
Habitat
Dry Forest, Lowland
bottomlands, Moist woods
USDA Hardiness Zone
10-154-9
0
99
👆🏻
AHS Heat Zone
12-10
9-3
Sunset Zone
H1, H2
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21
Habit
Oval or Rounded
Oval or Rounded
Plant Size
Minimum Height
300.00 cm1,830.00 cm
0
3900
👆🏻
Minimum Width
370.00 cm1,830.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Purple, Violet, Blue Violet
Yellow green
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Yellow, Red
Green, Chocolate
Leaf Color in Spring
Green, Olive
Green
Leaf Color in Summer
Green, Dark Green
Green, Dark Green
Leaf Color in Fall
Green, Olive
Yellow, Dark Green, Yellow green, Gold
Leaf Color in Winter
Olive
-
Shape
Leaf Shape
Pinnate
Pinnate
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall
Growing Conditions
Sunlight
Full Sun, Partial Sun
Full Sun
Growth Rate
Very Slow
Medium
Type of Soil
Loam, Sand
Clay, Loam, Sand
The pH of Soil
Neutral, Alkaline
Acidic, Neutral
Soil Drainage
Well drained
Well drained
Bloom Time
Early Spring, Spring, Late Winter, Indeterminate
Late Spring, Early Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought, Salt, Variety of soil types
-
Where to Plant?
Ground
Ground
How to Plant?
Seedlings
Seedlings
Plant Maintenance
Low
Medium
Watering Plants
Watering Requirements
Average Water Needs, Keep the ground moist but not water-logged, Requires regular watering
Average Water Needs, Requires regular watering
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Neutral, Alkaline
Acidic, Neutral
Soil Type
Loam, Sand
Clay, Loam, Sand
Soil Drainage Capacity
Well drained
Well drained
Sun Exposure
Full Sun, Partial Sun
Full Sun
Pruning
Remove damaged leaves, Remove dead branches, Remove dead leaves
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
Fertilizers
All-Purpose Liquid Fertilizer, slow-release fertilizers
Apply NPK fertilizer at the ratio of 6-24-24
Pests and Diseases
Pests and diseases free, Red blotch
Red blotch
Plant Tolerance
Drought, Salt, Variety of soil types
-
Flowers
Showy
Insignificant
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
Fine
Coarse
Foliage Sheen
Glossy
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Birds, Butterflies
Birds, Butterflies
Allergy
Skin irritation
Anaphylaxis, Toxic
Uses
Aesthetic Uses
Beautification, Cottage Garden, Ground Cover
-
Beauty Benefits
Blood purifying
Good for skin
Edible Uses
✔
✘
✔
✘
Environmental Uses
Food for birds, Shadow Tree
Air purification, Shadow Tree
Plant Benefits
Medicinal Uses
anti-inflammatory, Gout, Rheumatism, Sore throat
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, Seeds, Wood
Fruits
Other Uses
Used for its medicinal properties, Wood is used for ship building
Used As Food, Used as Ornamental plant
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Container, Feature Plant, Foundation, Mixed Border, Rock Garden / Wall, Tropical
Feature Plant, Shade Trees
Botanical Name
GUAIACUM sanctum
JUGLANS nigra
Common Name
Holy-wood, Lignum Vitae
Black Walnut
In Hindi
Holywood
काले अखरोट के पेड़
In German
Holywood
Schwarz Walnussbaum
In French
Holywood
Noir noyer
In Spanish
Holywood
nogal negro
In Greek
Holywood
Μαύρη καρυδιά
In Portuguese
Holywood
nogueira preta
In Polish
Holywood
Czarny orzech drzewo
In Latin
Holywood
Niger walnut tree
Kingdom
Plantae
Plantae
Phylum
Magnoliophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Sapindales
Juglandales
Family
Zygophyllaceae
Juglandaceae
Genus
Guaiacum
Juglans
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Eudicots, Rosids
Tribe
-
Juglandeae
Subfamily
Zygophylloideae
Juglandinae
Number of Species
516
1
27800
👆🏻