Life Span
Annual and Perennial
Perennial
Type
Flowering Plants, Shrubs
Tree
Origin
World/Pandemic, North America, Europe, Russia/Siberia, China, Korea
North America, United States, Northwestern United States, Alaska, California, Canada
Types
Bigleaf hydrangea, Hortensia, Smooth hydrangea, Oakleaf hydrangea, Annabelle
Not available
Number of Varieties
Not Available
Habitat
Forest edges, Hillside, Woods
Lowland evergreen rainforest
USDA Hardiness Zone
2-11
4-7
Sunset Zone
Not Available
3a, 3b, 4, 5, 6, 7, 14, 15, 16, 17
Habit
Upright/Erect
Pyramidal
Flower Color
Blue, Sky Blue, Indigo, Dark Blue
Yellow, Red, Coral
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Brown, Sandy Brown
Brown
Leaf Color in Spring
Sea Green, Gray Green
Green, Dark Green
Leaf Color in Summer
Sea Green, Gray Green
Dark Green
Leaf Color in Fall
Sea Green, Gray Green
Dark Green
Leaf Color in Winter
Light Green
Not Available
Leaf Shape
Oblovate
Ovate
Plant Season
Spring, Summer, Fall
Spring, Summer, Fall
Sunlight
Full Sun, Partial Sun
Full Sun, Partial Sun, Partial shade
Growth Rate
Very Fast
Fast
Type of Soil
Loam, Sand
Loam, Sand
The pH of Soil
Acidic, Neutral, Alkaline
Acidic, Neutral, Alkaline
Soil Drainage
Well drained
Average
Bloom Time
Indeterminate
Early Spring
Tolerances
Drought
Maritime exposure, Salt water
Where to Plant?
Container, Ground, Pot
Ground
How to Plant?
Seedlings
Layering, Seedlings
Plant Maintenance
Medium
Medium
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
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil pH
Slightly Acidic
Acidic, Neutral, Alkaline
Soil Type
Loamy
Loam, Sand
Soil Drainage Capacity
Loamy
Average
Sun Exposure
Full Sun
Full Sun, Partial Sun, Partial shade
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, Nitrogen
Pests and Diseases
Bacterial leaf spot, Botrytis Blight, Leafminers, Mealybugs, Mushroom root rot
Not Available
Plant Tolerance
Drought
Maritime exposure, Salt water
Flowers
Showy
Insignificant
Flower Petal Number
Single
Not Available
Foliage Texture
Medium
Medium
Foliage Sheen
Matte
Glossy
Attracts
Butterflies
Insects, Not Available
Allergy
Chest tightness, Diarrhea, Dizziness, Nausea, Vomiting
Not Available
Aesthetic Uses
Beautification, Bouquets, Landscape Designing, Showy Purposes
Not Used For Aesthetic Purpose
Beauty Benefits
Not Available
Skin Problems
Environmental Uses
Air purification, Food for insects, Indoor Air Purification, Prevent Soil Erosion, Very little waste
Air purification, Prevent Soil Erosion, Shadow Tree
Medicinal Uses
Fever, Kidney problems, Urinary tract problems
Anodyne, Appetizer, Astringent
Part of Plant Used
Flowers, Root
Flowers, Inner Bark, Sap
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
Used as a dye, used for making charcoal, Used for making informal hedge
Used As Indoor Plant
Yes
No
Used As Outdoor Plant
Yes
Yes
Garden Design
Container, Herb
Screening / Wind Break, Shade Trees
Botanical Name
CENTAUREA cyanus
ALNUS rubra
Common Name
Batchelor's Buttons, Cornflower
Oregon Alder, Red Alder
In Hindi
Hydrangea
red alder
In German
Hortensie
rot-Erle
In French
Hortensia
aulne rouge
In Spanish
Hortensia
aliso rojo
In Greek
υδραγεία
κόκκινη σκλήθρα
In Portuguese
Hortênsia
amieiro vermelho
In Polish
Hortensja
czerwony olcha
In Latin
Hibiscus
red alnus
Phylum
Anthophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Family
Asteraceae
Betulaceae
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Eudicots, Rosids
Tribe
Cynareae
Not Available
Subfamily
Carduoideae
Not Available
Number of Species
Not Available
Properties of Cornflower and Red Alder
Wondering what are the properties of Cornflower and Red Alder? We provide you with everything About Cornflower and Red Alder. Cornflower doesn't have thorns and Red Alder doesn't have thorns. Also Cornflower does not have fragrant flowers. Cornflower has allergic reactions like Chest tightness, Diarrhea, Dizziness, Nausea and Vomiting and Red Alder has allergic reactions like Chest tightness, Diarrhea, Dizziness, Nausea and Vomiting. Compare all the properties and characteristics of these two plants. Find out which of these plant can be used as indoor plant. If you are interested to decorate your house and garden, find out aesthetic uses, compare them and select the plant which will beautify your surrounding. Along with beautification, try comparing medicinal and edible uses of Cornflower and Red Alder and you can choose the plant having best and most benefits.
Season and Care of Cornflower and Red Alder
Season and care of Cornflower and Red Alder is important to know. While considering everything about Cornflower and Red Alder Care, growing season is an essential factor. Cornflower season is Spring, Summer and Fall and Red Alder season is Spring, Summer and Fall. The type of soil for Cornflower is Loam, Sand and for Red Alder is Loam, Sand while the PH of soil for Cornflower is Acidic, Neutral, Alkaline and for Red Alder is Acidic, Neutral, Alkaline.
Cornflower and Red Alder Physical Information
Cornflower and Red Alder physical information is very important for comparison. Cornflower height is 30.00 cm and width 30.00 cm whereas Red Alder height is 1,370.00 cm and width 610.00 cm. The color specification of Cornflower and Red Alder are as follows:
Cornflower flower color: Blue, Sky Blue, Indigo and Dark Blue
Cornflower leaf color: Sea Green and Gray Green
Red Alder flower color: Yellow, Red and Coral
- Red Alder leaf color: Green and Dark Green
Care of Cornflower and Red Alder
Care of Cornflower and Red Alder include pruning, fertilizers, watering etc. Cornflower pruning is done Prune to control growth, Remove damaged leaves, Remove dead branches and Remove dead leaves and Red Alder 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 Red Alder needs Lots of watering and in winter, it needs Average Water.
