Life Span
Annual and Perennial
Perennial
Type
Flowering Plants, Shrubs
Bulb or Corm or Tuber
Origin
World/Pandemic, North America, Europe, Russia/Siberia, China, Korea
World/Pandemic, North America, Europe, Russia/Siberia, Northern Africa, Asia, India
Types
Bigleaf hydrangea, Hortensia, Smooth hydrangea, Oakleaf hydrangea, Annabelle
Not Available
Habitat
Forest edges, Hillside, Woods
Cropland, Farms, gardens
USDA Hardiness Zone
2-11
Not Available
AHS Heat Zone
7 - 1
Not Available
Sunset Zone
Not Available
21,22
Habit
Upright/Erect
Not Available
Minimum Height
Not Available
Minimum Width
Not Available
Flower Color
Blue, Sky Blue, Indigo, Dark Blue
Not Available
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Brown, Sandy Brown
Not Available
Leaf Color in Spring
Sea Green, Gray Green
Not Available
Leaf Color in Summer
Sea Green, Gray Green
Light Green
Leaf Color in Fall
Sea Green, Gray Green
Several shades of Green
Leaf Color in Winter
Light Green
Light Green
Leaf Shape
Oblovate
Linear
Plant Season
Spring, Summer, Fall
Not Available
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun
Growth Rate
Very Fast
Not Available
Type of Soil
Loam, Sand
Not Available
The pH of Soil
Acidic, Neutral, Alkaline
Not Available
Soil Drainage
Well drained
Well drained
Bloom Time
Indeterminate
Not Available
Repeat Bloomer
Yes
Not Available
Tolerances
Drought
Drought
Where to Plant?
Container, Ground, Pot
Ground, Pot
How to Plant?
Seedlings
Seedlings, Sets
Plant Maintenance
Medium
Medium
Watering Requirements
Keep ground moist, Requires a lot of watering, Requires regular watering, Requires watering in the growing season
Keep the ground moist but not water-logged, Requires a lot of watering, Water twice a day in the initial period
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil pH
Slightly Acidic
Not Available
Soil Type
Loamy
Not Available
Soil Drainage Capacity
Loamy
Well drained
Sun Exposure
Full Sun
Full Sun, Partial Sun
Pruning
Prune to control growth, Remove damaged leaves, Remove dead branches, Remove dead leaves
Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
Compost
All-Purpose Liquid Fertilizer
Pests and Diseases
Bacterial leaf spot, Botrytis Blight, Leafminers, Mealybugs, Mushroom root rot
Red blotch
Plant Tolerance
Drought
Drought
Flower Petal Number
Single
Single
Showy Fruit
No
Not Available
Edible Fruit
No
Not Available
Fragrant Bark/Stem
No
Yes
Showy Foliage
No
Not Available
Foliage Texture
Medium
Not Available
Foliage Sheen
Matte
Not Available
Invasive
Sometimes
Not Available
Self-Sowing
Yes
Not Available
Attracts
Butterflies
Not Available
Allergy
Chest tightness, Diarrhea, Dizziness, Nausea, Vomiting
no allergic reactions
Aesthetic Uses
Beautification, Bouquets, Landscape Designing, Showy Purposes
Not Used For Aesthetic Purpose
Beauty Benefits
Not Available
Not Available
Environmental Uses
Air purification, Food for insects, Indoor Air Purification, Prevent Soil Erosion, Very little waste
Air purification
Medicinal Uses
Fever, Kidney problems, Urinary tract problems
Asthma, Bronchitis, cholesterol-lowering, Cough, Diabetes, Digestion problems, Diuretic, High blood pressure
Part of Plant Used
Flowers, Root
Whole plant
Other Uses
Can be made into a herbal tea, Decoration Purposes, Employed in herbal medicine, Showy Purposes, Used as Ornamental plant, Used for its medicinal properties
Culinary use
Used As Indoor Plant
Yes
Yes
Used As Outdoor Plant
Yes
Yes
Garden Design
Container, Herb
Not Available
Botanical Name
CENTAUREA cyanus
ALLIUM
Common Name
Batchelor's Buttons, Cornflower
Onion, Red Onion
In German
Hortensie
Zwiebel
In French
Hortensia
Oignon
In Spanish
Hortensia
Cebolla
In Greek
υδραγεία
Κρεμμύδι
In Portuguese
Hortênsia
Cebola
In Polish
Hortensja
Cebula
Phylum
Anthophyta
Magnoliophyta
Class
Magnoliopsida
Liliopsida
Order
Asterales
Asparagales
Family
Asteraceae
Liliaceae
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Monocots
Subfamily
Carduoideae
Allioideae
Number of Species
Not Available
Importance of Cornflower and Onion
Want to have the most appropriate plant for your garden? You might want to know the importance of Cornflower and Onion. Basically, these two plants vary in many aspects. Compare Cornflower and Onion 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 Cornflower is Fever, Kidney problems and Urinary tract problems whereas of Onion is Asthma, Bronchitis, cholesterol-lowering, Cough, Diabetes, Digestion problems, Diuretic and High blood pressure. Cornflower has beauty benefits as follows: Not Available while Onion has beauty benefits as follows: Not Available.
Compare Facts of Cornflower vs Onion
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 Cornflower vs Onion 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 Cornflower are Chest tightness, Diarrhea, Dizziness, Nausea and Vomiting whereas of Onion have no allergic reactions respectively. Having a fruit bearing plant in your garden can be a plus point of your garden. Cornflower has no showy fruits and Onion has no showy fruits. Also Cornflower is not flowering and Onion is not flowering . You can compare Cornflower and Onion facts and facts of other plants too.