Life Span
Annual and Perennial
Perennial
Type
Flowering Plants, Shrubs
Ornamental Grasses and Bamboo
Origin
World/Pandemic, North America, Europe, Russia/Siberia, China, Korea
Southern Europe, Western Europe, Mediterranean
Types
Bigleaf hydrangea, Hortensia, Smooth hydrangea, Oakleaf hydrangea, Annabelle
-
Habitat
Forest edges, Hillside, Woods
Desert, Dry areas, Dry Forest, Rocky areas
USDA Hardiness Zone
2-11
4-9
AHS Heat Zone
7 - 1
9 - 1
Sunset Zone
7, 8, 9, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24
1a, 1b, 2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Habit
Upright/Erect
Cushion/Mound-forming
Flower Color
Blue, Sky Blue, Indigo, Dark Blue
Blue Green
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Brown, Sandy Brown
-
Leaf Color in Spring
Sea Green, Gray Green
Blue Green, Silver, Gray
Leaf Color in Summer
Sea Green, Gray Green
Light Green
Leaf Color in Fall
Sea Green, Gray Green
Blue Green, Silver, Gray
Leaf Color in Winter
Light Green
Blue Green, Tan, Silver, Gray
Leaf Shape
Oblovate
Grass like
Plant Season
Spring, Summer, Fall
Spring, Summer, Fall, Winter
Sunlight
Full Sun, Partial Sun
Full Sun
Growth Rate
Very Fast
Medium
Type of Soil
Loam, Sand
Clay, Loam, Sand
The pH of Soil
Acidic, Neutral, Alkaline
Neutral, Alkaline
Soil Drainage
Well drained
Well drained
Bloom Time
Indeterminate
Late Spring, Early Summer
Where to Plant?
Container, Ground, Pot
Container, Ground
How to Plant?
Seedlings
Rooted stem cutting, Seedlings, Stem Planting
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, occasional watering once established, Requires regular watering, Requires watering in the growing season
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil pH
Slightly Acidic
Neutral, Alkaline
Soil Type
Loamy
Clay, Loam, Sand
Soil Drainage Capacity
Loamy
Well drained
Sun Exposure
Full Sun
Full Sun
Pruning
Prune to control growth, Remove damaged leaves, Remove dead branches, Remove dead leaves
Cut or pinch the stems, Pinch Tips, 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
Salt
Flower Petal Number
Single
Single
Foliage Texture
Medium
Fine
Foliage Sheen
Matte
Matte
Attracts
Butterflies
Butterflies, Hummingbirds
Allergy
Chest tightness, Diarrhea, Dizziness, Nausea, Vomiting
Asthma, Itchiness, Rash, Rhinitis
Aesthetic Uses
Beautification, Bouquets, Landscape Designing, Showy Purposes
Ground Cover
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
-
Part of Plant Used
Flowers, Root
Stem
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 Ornamental plant
Used As Indoor Plant
Yes
No
Used As Outdoor Plant
Yes
Yes
Garden Design
Container, Herb
Container, Edging, Mixed Border, Rock Garden / Wall
Botanical Name
CENTAUREA cyanus
HELICTOTRICHON sempervirens
Common Name
Batchelor's Buttons, Cornflower
Blue Oat Grass
In Hindi
Hydrangea
ब्लू जई घास
In German
Hortensie
Blau Ährengras
In French
Hortensia
Bleu Oat Grass
In Spanish
Hortensia
Azul hierba de avena
In Greek
υδραγεία
Μπλε βρώμης Grass
In Portuguese
Hortênsia
Azul Aveia
In Polish
Hortensja
Niebieski Owies trawa
In Latin
Hibiscus
Blue Oat Grass
Phylum
Anthophyta
Magnoliophyta
Class
Magnoliopsida
Liliopsida
Family
Asteraceae
Poaceae
Genus
Centaurea
Helictotrichon
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Commelinids, Monocots
Subfamily
Carduoideae
Pooideae
Season and Care of Cornflower and Blue Oat Grass
Season and care of Cornflower and Blue Oat Grass is important to know. While considering everything about Cornflower and Blue Oat Grass Care, growing season is an essential factor. Cornflower season is Spring, Summer and Fall and Blue Oat Grass season is Spring, Summer and Fall. The type of soil for Cornflower is Loam, Sand and for Blue Oat Grass is Clay, Loam, Sand while the PH of soil for Cornflower is Acidic, Neutral, Alkaline and for Blue Oat Grass is Neutral, Alkaline.
Cornflower and Blue Oat Grass Physical Information
Cornflower and Blue Oat Grass physical information is very important for comparison. Cornflower height is 30.00 cm and width 30.00 cm whereas Blue Oat Grass height is 45.00 cm and width 60.96 cm. The color specification of Cornflower and Blue Oat Grass are as follows:
Cornflower flower color: Blue, Sky Blue, Indigo and Dark Blue
Cornflower leaf color: Sea Green and Gray Green
Blue Oat Grass flower color: Blue Green
- Blue Oat Grass leaf color: Blue Green, Silver and Gray
Care of Cornflower and Blue Oat Grass
Care of Cornflower and Blue Oat Grass include pruning, fertilizers, watering etc. Cornflower pruning is done Prune to control growth, Remove damaged leaves, Remove dead branches and Remove dead leaves and Blue Oat Grass pruning is done Cut or pinch the stems, Pinch Tips, 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 Blue Oat Grass needs Lots of watering and in winter, it needs Average Water.