Life Span
Annual and Perennial
Annual
Type
Flowering Plants, Shrubs
Perennial
Origin
World/Pandemic, North America, Europe, Russia/Siberia, China, Korea
New Zealand
Types
Bigleaf hydrangea, Hortensia, Smooth hydrangea, Oakleaf hydrangea, Annabelle
Not Available
Number of Varieties
Not Available
Habitat
Forest edges, Hillside, Woods
All sorts of environments
USDA Hardiness Zone
2-11
7-9
Sunset Zone
Not Available
2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Habit
Upright/Erect
Mat-forming
Flower Color
Blue, Sky Blue, Indigo, Dark Blue
Yellow
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Brown, Sandy Brown
Non Fruiting Plant
Leaf Color in Spring
Sea Green, Gray Green
Green, Gray Green, Silver
Leaf Color in Summer
Sea Green, Gray Green
Gray Green, Silver
Leaf Color in Fall
Sea Green, Gray Green
Gray Green, Silver
Leaf Color in Winter
Light Green
Light Green
Plant Season
Spring, Summer, Fall
Spring, Summer, Fall, Winter
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun, Partial shade
Growth Rate
Very Fast
Slow
Type of Soil
Loam, Sand
Loam, Sand
The pH of Soil
Acidic, Neutral, Alkaline
Acidic, Neutral, Alkaline
Soil Drainage
Well drained
Well drained
Bloom Time
Indeterminate
Summer
Tolerances
Drought
Drought
Where to Plant?
Container, Ground, Pot
Container, Ground
How to Plant?
Seedlings
Seedlings
Plant Maintenance
Medium
High
Watering Requirements
Keep ground moist, Requires a lot of watering, Requires regular watering, Requires watering in the growing season
Average Water Needs
In Summer
Lots of watering
Drought Tolerant, Average Water
In Spring
Moderate
Alternate Days
In Winter
Average Water
Moderate
Soil pH
Slightly Acidic
Acidic, Neutral, Alkaline
Soil Type
Loamy
Loam, Sand
Soil Drainage Capacity
Loamy
Well drained
Sun Exposure
Full Sun
Full Sun, Partial Sun, Partial shade
Pruning
Prune to control growth, Remove damaged leaves, Remove dead branches, Remove dead leaves
Requires very little pruning
Fertilizers
Compost
Not Available
Pests and Diseases
Bacterial leaf spot, Botrytis Blight, Leafminers, Mealybugs, Mushroom root rot
Aphids, Spider mites
Plant Tolerance
Drought
Drought
Flowers
Showy
Insignificant
Flower Petal Number
Single
Single
Foliage Texture
Medium
Fine
Foliage Sheen
Matte
Matte
Attracts
Butterflies
Birds, Butterflies, Hummingbirds
Allergy
Chest tightness, Diarrhea, Dizziness, Nausea, Vomiting
no allergic reactions
Aesthetic Uses
Beautification, Bouquets, Landscape Designing, Showy Purposes
Bog Garden, Borders
Beauty Benefits
Not Available
No Beauty Benefits
Environmental Uses
Air purification, Food for insects, Indoor Air Purification, Prevent Soil Erosion, Very little waste
Not Available
Medicinal Uses
Fever, Kidney problems, Urinary tract problems
Not Available
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
Showy Purposes
Used As Indoor Plant
Yes
No
Used As Outdoor Plant
Yes
Yes
Garden Design
Container, Herb
Alpine, Container, Rock Garden / Wall
Botanical Name
CENTAUREA cyanus
Raoulia glabra
Common Name
Batchelor's Buttons, Cornflower
Raoulia
In Hindi
Hydrangea
Raoulia
In German
Hortensie
Raoulia
In French
Hortensia
Raoulia
In Spanish
Hortensia
Raoulia
In Greek
υδραγεία
Raoulia
In Portuguese
Hortênsia
raoulia
In Polish
Hortensja
Raoulia
In Latin
Hibiscus
Raoulia
Phylum
Anthophyta
Tracheophyta
Class
Magnoliopsida
Magnoliopsida
Order
Asterales
Asterales
Family
Asteraceae
Asteraceae
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Asterids, Eudicots
Tribe
Cynareae
Gnaphalieae
Subfamily
Carduoideae
Not Available
Number of Species
Not Available
Not Available
Importance of Cornflower and Raoulia
Want to have the most appropriate plant for your garden? You might want to know the importance of Cornflower and Raoulia. Basically, these two plants vary in many aspects. Compare Cornflower and Raoulia 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 Raoulia is Not Available. Cornflower has beauty benefits as follows: Not Available while Raoulia has beauty benefits as follows: Not Available.
Compare Facts of Cornflower vs Raoulia
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 Raoulia 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 Raoulia 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 Raoulia has no showy fruits. Also Cornflower is not flowering and Raoulia is not flowering . You can compare Cornflower and Raoulia facts and facts of other plants too.