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
-
Number of Varieties
10010
0
40000
👆🏻
Habitat
Forest edges, Hillside, Woods
Desert, Dry areas, Dry Forest, Rocky areas
USDA Hardiness Zone
2-114-9
0
99
👆🏻
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
Plant Size
Minimum Height
30.00 cm45.00 cm
0
3900
👆🏻
Minimum Width
30.00 cm60.96 cm
0
6350
👆🏻
Plant Color
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
Shape
Leaf Shape
Oblovate
Grass like
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall
Spring, Summer, Fall, Winter
Growing Conditions
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
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Salt
Where to Plant?
Container, Ground, Pot
Container, Ground
How to Plant?
Seedlings
Rooted stem cutting, Seedlings, Stem Planting
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
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
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
Flowers
✔
✘
✔
✘
Flower Petal Number
Single
Single
Fruits
Showy Fruit
✔
✘
✔
✘
Edible Fruit
✔
✘
✔
✘
Fragrance
Fragrant Flower
✔
✘
✔
✘
Fragrant Fruit
✔
✘
✔
✘
Fragrant Leaf
✔
✘
✔
✘
Fragrant Bark/Stem
✔
✘
✔
✘
Showy Foliage
✔
✘
✔
✘
Showy Bark
✔
✘
✔
✘
Foliage Texture
Medium
Fine
Foliage Sheen
Matte
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Butterflies
Butterflies, Hummingbirds
Allergy
Chest tightness, Diarrhea, Dizziness, Nausea, Vomiting
Asthma, Itchiness, Rash, Rhinitis
Uses
Aesthetic Uses
Beautification, Bouquets, Landscape Designing, Showy Purposes
Ground Cover
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
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
-
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
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
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
Kingdom
Plantae
Plantae
Phylum
Anthophyta
Magnoliophyta
Class
Magnoliopsida
Liliopsida
Order
Asterales
Poales
Family
Asteraceae
Poaceae
Genus
Centaurea
Helictotrichon
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Commelinids, Monocots
Tribe
Cynareae
Aveneae
Subfamily
Carduoideae
Pooideae
Number of Species
25070
1
27800
👆🏻