Life Span
Annual
Annual and Perennial
Type
Perennial
Flowering Plants, Shrubs
Origin
New Zealand
World/Pandemic, North America, Europe, Russia/Siberia, China, Korea
Types
Not Available
Bigleaf hydrangea, Hortensia, Smooth hydrangea, Oakleaf hydrangea, Annabelle
Number of Varieties
Not Available
Habitat
All sorts of environments
Forest edges, Hillside, Woods
USDA Hardiness Zone
7-9
2-11
Sunset Zone
2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Not Available
Habit
Mat-forming
Upright/Erect
Flower Color
Yellow
Blue, Sky Blue, Indigo, Dark Blue
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Non Fruiting Plant
Brown, Sandy Brown
Leaf Color in Spring
Green, Gray Green, Silver
Sea Green, Gray Green
Leaf Color in Summer
Gray Green, Silver
Sea Green, Gray Green
Leaf Color in Fall
Gray Green, Silver
Sea Green, Gray Green
Leaf Color in Winter
Light Green
Light Green
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall
Sunlight
Full Sun, Partial Sun, Partial shade
Full Sun, Partial Sun
Growth Rate
Slow
Very Fast
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
Summer
Indeterminate
Tolerances
Drought
Drought
Where to Plant?
Container, Ground
Container, Ground, Pot
How to Plant?
Seedlings
Seedlings
Plant Maintenance
High
Medium
Watering Requirements
Average Water Needs
Keep ground moist, Requires a lot of watering, Requires regular watering, Requires watering in the growing season
In Summer
Drought Tolerant, Average Water
Lots of watering
In Spring
Alternate Days
Moderate
In Winter
Moderate
Average Water
Soil pH
Acidic, Neutral, Alkaline
Slightly Acidic
Soil Type
Loam, Sand
Loamy
Soil Drainage Capacity
Well drained
Loamy
Sun Exposure
Full Sun, Partial Sun, Partial shade
Full Sun
Pruning
Requires very little pruning
Prune to control growth, Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
Not Available
Compost
Pests and Diseases
Aphids, Spider mites
Bacterial leaf spot, Botrytis Blight, Leafminers, Mealybugs, Mushroom root rot
Plant Tolerance
Drought
Drought
Flowers
Insignificant
Showy
Flower Petal Number
Single
Single
Foliage Texture
Fine
Medium
Foliage Sheen
Matte
Matte
Attracts
Birds, Butterflies, Hummingbirds
Butterflies
Allergy
no allergic reactions
Chest tightness, Diarrhea, Dizziness, Nausea, Vomiting
Aesthetic Uses
Bog Garden, Borders
Beautification, Bouquets, Landscape Designing, Showy Purposes
Beauty Benefits
No Beauty Benefits
Not Available
Environmental Uses
Not Available
Air purification, Food for insects, Indoor Air Purification, Prevent Soil Erosion, Very little waste
Medicinal Uses
Not Available
Fever, Kidney problems, Urinary tract problems
Part of Plant Used
Whole plant
Flowers, Root
Other Uses
Showy Purposes
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
Alpine, Container, Rock Garden / Wall
Container, Herb
Botanical Name
Raoulia glabra
CENTAUREA cyanus
Common Name
Raoulia
Batchelor's Buttons, Cornflower
In Hindi
Raoulia
Hydrangea
In German
Raoulia
Hortensie
In French
Raoulia
Hortensia
In Spanish
Raoulia
Hortensia
In Greek
Raoulia
υδραγεία
In Portuguese
raoulia
Hortênsia
In Polish
Raoulia
Hortensja
In Latin
Raoulia
Hibiscus
Phylum
Tracheophyta
Anthophyta
Class
Magnoliopsida
Magnoliopsida
Order
Asterales
Asterales
Family
Asteraceae
Asteraceae
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Asterids, Eudicots
Tribe
Gnaphalieae
Cynareae
Subfamily
Not Available
Carduoideae
Number of Species
Not Available
Not Available
Season and Care of Raoulia and Cornflower
Season and care of Raoulia and Cornflower is important to know. While considering everything about Raoulia and Cornflower Care, growing season is an essential factor. Raoulia season is Spring, Summer, Fall and Winter and Cornflower season is Spring, Summer, Fall and Winter. The type of soil for Raoulia is Loam, Sand and for Cornflower is Loam, Sand while the PH of soil for Raoulia is Acidic, Neutral, Alkaline and for Cornflower is Acidic, Neutral, Alkaline.
Raoulia and Cornflower Physical Information
Raoulia and Cornflower physical information is very important for comparison. Raoulia height is 2.50 cm and width 25.40 cm whereas Cornflower height is 30.00 cm and width 30.00 cm. The color specification of Raoulia and Cornflower are as follows:
Raoulia flower color: Yellow
Raoulia leaf color: Green, Gray Green and Silver
Cornflower flower color: Blue, Sky Blue, Indigo and Dark Blue
- Cornflower leaf color: Sea Green and Gray Green
Care of Raoulia and Cornflower
Care of Raoulia and Cornflower include pruning, fertilizers, watering etc. Raoulia pruning is done Requires very little pruning and Cornflower pruning is done Prune to control growth, Remove damaged leaves, Remove dead branches and Remove dead leaves. In summer Raoulia needs Drought Tolerant, Average Water and in winter, it needs Moderate. Whereas, in summer Cornflower needs Lots of watering and in winter, it needs Average Water.
