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
  
Plant Size
  
  
Plant Color
  
  
Flower Color
Blue, Sky Blue, Indigo, Dark Blue
  
White, Yellow green
  
Flower Color Modifier
Bicolor
  
Bicolor
  
Fruit Color
Brown, Sandy Brown
  
Not Available
  
Leaf Color in Spring
Sea Green, Gray Green
  
Blue Green, Yellow green
  
Leaf Color in Summer
Sea Green, Gray Green
  
Green, Gray Green
  
Leaf Color in Fall
Sea Green, Gray Green
  
Green, Gray Green, Yellow green
  
Leaf Color in Winter
Light Green
  
Not Available
  
Shape
  
  
Leaf Shape
Oblovate
  
Linear
  
Thorns
No
  
No
  
Plant Season
Spring, Summer, Fall
  
Spring, Summer
  
Growing Conditions
  
  
Sunlight
Full Sun, Partial Sun
  
Full Sun, Partial Sun
  
Growth Rate
Very Fast
  
Medium
  
Type of Soil
Loam, Sand
  
Loam, Sand
  
The pH of Soil
Acidic, Neutral, Alkaline
  
Neutral
  
Soil Drainage
Well drained
  
Well drained
  
Bloom Time
Indeterminate
  
Spring, Late Spring, Early Summer
  
Repeat Bloomer
Yes
  
No
  
Tolerances
Drought
  
Drought
  
Where to Plant?
Container, Ground, Pot
  
Ground, Pot
  
How to Plant?
Seedlings
  
Seedlings, Sets
  
Plant Maintenance
Medium
  
Medium
  
Watering Plants
  
  
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
  
  
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
  
Flowers
Showy
  
Showy
  
Flower Petal Number
Single
  
Single
  
Fruits
  
  
Showy Fruit
No
  
Not Available
  
Edible Fruit
No
  
Not Available
  
Fragrance
  
  
Fragrant Flower
Yes
  
Yes
  
Fragrant Fruit
No
  
Yes
  
Fragrant Leaf
No
  
Yes
  
Fragrant Bark/Stem
No
  
Yes
  
Showy Foliage
No
  
No
  
Showy Bark
No
  
No
  
Foliage Texture
Medium
  
Medium
  
Foliage Sheen
Matte
  
Matte
  
Evergreen
No
  
No
  
Invasive
Sometimes
  
No
  
Self-Sowing
Yes
  
No
  
Attracts
Butterflies
  
Not Available
  
Allergy
Chest tightness, Diarrhea, Dizziness, Nausea, Vomiting
  
Not Available
  
Uses
  
  
Aesthetic Uses
Beautification, Bouquets, Landscape Designing, Showy Purposes
  
Not Used For Aesthetic Purpose
  
Beauty Benefits
Not Available
  
Not Available
  
Edible Uses
Yes
  
Yes
  
Environmental Uses
Air purification, Food for insects, Indoor Air Purification, Prevent Soil Erosion, Very little waste
  
Air purification
  
Plant Benefits
  
  
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 cepa 'Vidalia'
  
Common Name
Batchelor's Buttons, Cornflower
  
Garden Onion, Sweet Onion, Vidalia Onion
  
In Hindi
Hydrangea
  
मीठा प्याज
  
In German
Hortensie
  
Sweet Onion
  
In French
Hortensia
  
oignon doux
  
In Spanish
Hortensia
  
Cebolla dulce
  
In Greek
υδραγεία
  
γλυκό Κρεμμύδι
  
In Portuguese
Hortênsia
  
Cebola doce
  
In Polish
Hortensja
  
słodka Cebula
  
In Latin
Hibiscus
  
Dulcis cepa
  
Kingdom
Plantae
  
Plantae
  
Phylum
Anthophyta
  
Tracheophyta
  
Class
Magnoliopsida
  
Magnoliopsida
  
Order
Asterales
  
Asparagales
  
Family
Asteraceae
  
Liliaceae
  
Genus
Centaurea
  
Allium
  
Clade
Angiosperms, Asterids, Eudicots
  
Angiosperms, Asparagales, Monocots
  
Tribe
Cynareae
  
Not Available
  
Subfamily
Carduoideae
  
Not Available
  
Number of Species
Not Available
  
Season and Care of Cornflower and Sweet Onion
Season and care of Cornflower and Sweet Onion is important to know. While considering everything about Cornflower and Sweet Onion Care, growing season is an essential factor. Cornflower season is Spring, Summer and Fall and Sweet Onion season is Spring, Summer and Fall. The type of soil for Cornflower is Loam, Sand and for Sweet Onion is Loam, Sand while the PH of soil for Cornflower is Acidic, Neutral, Alkaline and for Sweet Onion is Neutral.
Cornflower and Sweet Onion Physical Information
Cornflower and Sweet Onion physical information is very important for comparison. Cornflower height is 30.00 cm and width 30.00 cm whereas Sweet Onion height is 60.00 cm and width 10.00 cm. The color specification of Cornflower and Sweet Onion are as follows:
Cornflower flower color: Blue, Sky Blue, Indigo and Dark Blue
Cornflower leaf color: Sea Green and Gray Green
Sweet Onion flower color: White and Yellow green
- Sweet Onion leaf color: Blue Green and Yellow green
Care of Cornflower and Sweet Onion
Care of Cornflower and Sweet Onion include pruning, fertilizers, watering etc. Cornflower pruning is done Prune to control growth, Remove damaged leaves, Remove dead branches and Remove dead leaves and Sweet Onion pruning is done Remove damaged leaves, Remove dead branches and Remove dead leaves. In summer Cornflower needs Lots of watering and in winter, it needs Average Water. Whereas, in summer Sweet Onion needs Lots of watering and in winter, it needs Average Water.