Life Span
Perennial
Annual and Perennial
Type
Tree
Flowering Plants, Shrubs
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
World/Pandemic, North America, Europe, Russia/Siberia, China, Korea
Types
Juglans nigra
Bigleaf hydrangea, Hortensia, Smooth hydrangea, Oakleaf hydrangea, Annabelle
Habitat
bottomlands, Moist woods
Forest edges, Hillside, Woods
USDA Hardiness Zone
4-9
2-11
Sunset Zone
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21
7, 8, 9, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24
Habit
Oval or Rounded
Upright/Erect
Flower Color
Yellow green
Blue, Sky Blue, Indigo, Dark Blue
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Green, Chocolate
Brown, Sandy Brown
Leaf Color in Spring
Green
Sea Green, Gray Green
Leaf Color in Summer
Green, Dark Green
Sea Green, Gray Green
Leaf Color in Fall
Yellow, Dark Green, Yellow green, Gold
Sea Green, Gray Green
Leaf Color in Winter
-
Light Green
Leaf Shape
Pinnate
Oblovate
Plant Season
Spring, Summer, Fall
Spring, Summer, Fall
Sunlight
Full Sun
Full Sun, Partial Sun
Growth Rate
Medium
Very Fast
Type of Soil
Clay, Loam, Sand
Loam, Sand
The pH of Soil
Acidic, Neutral
Acidic, Neutral, Alkaline
Soil Drainage
Well drained
Well drained
Bloom Time
Late Spring, Early Summer
Indeterminate
Where to Plant?
Ground
Container, Ground, Pot
How to Plant?
Seedlings
Seedlings
Plant Maintenance
Medium
Medium
Watering Requirements
Average Water Needs, Requires regular watering
Keep ground moist, Requires a lot of watering, 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 pH
Acidic, Neutral
Slightly Acidic
Soil Type
Clay, Loam, Sand
Loamy
Soil Drainage Capacity
Well drained
Loamy
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
Prune to control growth, Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
Apply NPK fertilizer at the ratio of 6-24-24
Compost
Pests and Diseases
Red blotch
Bacterial leaf spot, Botrytis Blight, Leafminers, Mealybugs, Mushroom root rot
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
Butterflies
Allergy
Anaphylaxis, Toxic
Chest tightness, Diarrhea, Dizziness, Nausea, Vomiting
Aesthetic Uses
-
Beautification, Bouquets, Landscape Designing, Showy Purposes
Beauty Benefits
Good for skin
-
Environmental Uses
Air purification, Shadow Tree
Air purification, Food for insects, Indoor Air Purification, Prevent Soil Erosion, Very little waste
Medicinal Uses
Cancer, Coronary diseases, Cures constipation, Diarrhea, Diphtheria, High cholestrol, Immunity, Intestinal worms, Leukemia, Skin wounds, Sore throat, Syphilis, Use as a gargle
Fever, Kidney problems, Urinary tract problems
Part of Plant Used
Fruits
Flowers, Root
Other Uses
Used As Food, Used as Ornamental plant
Can be made into a herbal tea, Decoration Purposes, Employed in herbal medicine, Showy Purposes, Used as Ornamental plant, Used for its medicinal properties
Used As Indoor Plant
No
Yes
Used As Outdoor Plant
Yes
Yes
Garden Design
Feature Plant, Shade Trees
Container, Herb
Botanical Name
JUGLANS nigra
CENTAUREA cyanus
Common Name
Black Walnut
Batchelor's Buttons, Cornflower
In Hindi
काले अखरोट के पेड़
Hydrangea
In German
Schwarz Walnussbaum
Hortensie
In French
Noir noyer
Hortensia
In Spanish
nogal negro
Hortensia
In Greek
Μαύρη καρυδιά
υδραγεία
In Portuguese
nogueira preta
Hortênsia
In Polish
Czarny orzech drzewo
Hortensja
In Latin
Niger walnut tree
Hibiscus
Phylum
Magnoliophyta
Anthophyta
Class
Magnoliopsida
Magnoliopsida
Order
Juglandales
Asterales
Family
Juglandaceae
Asteraceae
Clade
Angiosperms, Eudicots, Rosids
Angiosperms, Asterids, Eudicots
Tribe
Juglandeae
Cynareae
Subfamily
Juglandinae
Carduoideae
Importance of Black Walnut and Cornflower
Want to have the most appropriate plant for your garden? You might want to know the importance of Black Walnut and Cornflower. Basically, these two plants vary in many aspects. Compare Black Walnut and Cornflower as they differ in many characteristics such as their life, care, benefits, facts, etc. Every gardener must at least have the slightest clue about the plants he wants to plant in his garden. Compare their benefits, which differ in many ways like facts and uses. The medicinal use of Black Walnut is Cancer, Coronary diseases, Cures constipation, Diarrhea, Diphtheria, High cholestrol, Immunity, Intestinal worms, Leukemia, Skin wounds, Sore throat, Syphilis and Use as a gargle whereas of Cornflower is Fever, Kidney problems and Urinary tract problems. Black Walnut has beauty benefits as follows: Good for skin while Cornflower has beauty benefits as follows: Good for skin.
Compare Facts of Black Walnut vs Cornflower
How to choose the best garden plant for your garden depending upon its facts? Here garden plant comparison will help you to solve this query. Compare the facts of Black Walnut vs Cornflower and know which one to choose. As garden plants have benefits and other uses, allergy is also a major drawback of plants for some people. Allergic reactions of Black Walnut are Anaphylaxis and Toxic whereas of Cornflower have Chest tightness, Diarrhea, Dizziness, Nausea and Vomiting respectively. Having a fruit bearing plant in your garden can be a plus point of your garden. Black Walnut has showy fruits and Cornflower has no showy fruits. Also Black Walnut is not flowering and Cornflower is not flowering . You can compare Black Walnut and Cornflower facts and facts of other plants too.