Life Span
Annual and Perennial
Annual
Type
Flowering Plants, Shrubs
Perennial
Origin
World/Pandemic, North America, Europe, Russia/Siberia, China, Korea
Europe, Asia
Types
Bigleaf hydrangea, Hortensia, Smooth hydrangea, Oakleaf hydrangea, Annabelle
Winged flax, Bristle flax, Fairy flax
Number of Varieties
1004
0
40000
👆🏻
Habitat
Forest edges, Hillside, Woods
Cultivated Beds
USDA Hardiness Zone
2-114-8
0
99
👆🏻
AHS Heat Zone
7 - 1
9-7
Sunset Zone
7, 8, 9, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24
2a, 2b, 3a, 3b, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Habit
Upright/Erect
Clump-Forming
Plant Size
Minimum Height
30.00 cm45.72 cm
0
3900
👆🏻
Minimum Width
30.00 cm45.72 cm
0
6350
👆🏻
Plant Color
Flower Color
Blue, Sky Blue, Indigo, Dark Blue
Blue, Sky Blue
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Brown, Sandy Brown
Tan
Leaf Color in Spring
Sea Green, Gray Green
Green, Blue Green
Leaf Color in Summer
Sea Green, Gray Green
Green, Blue Green
Leaf Color in Fall
Sea Green, Gray Green
Green, Blue Green
Leaf Color in Winter
Light Green
Light Green
Shape
Leaf Shape
Oblovate
Narrow
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall
Summer
Growing Conditions
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
Neutral, Alkaline
Soil Drainage
Well drained
Well drained
Bloom Time
Indeterminate
Early Summer, Summer
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Drought
Where to Plant?
Container, Ground, Pot
Ground
How to Plant?
Seedlings
Seedlings
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, 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
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
Midseason Pruning, Prune in fall, 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
Drought
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
Bees, Butterflies, Flies
Allergy
Chest tightness, Diarrhea, Dizziness, Nausea, Vomiting
Cyanide poisoning
Uses
Aesthetic Uses
Beautification, Bouquets, Landscape Designing, Showy Purposes
Showy Purposes
Beauty Benefits
-
Good for skin
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
Antirheumatic, Carminative, Emollient, Ophthalmic, Poultice, Stomachic
Part of Plant Used
Flowers, Root
Flowers, Seeds
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
Cosmetics, Fibre, For making oil, Used in paper industry
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Container, Herb
Mixed Border, Rock Garden, Wall, Wildflower
Botanical Name
CENTAUREA cyanus
LINUM perenne
Common Name
Batchelor's Buttons, Cornflower
Perennial Flax, Blue flax, Alpine flax
In Hindi
Hydrangea
Blue Flax Plant
In German
Hortensie
Blaue Flachspflanze
In French
Hortensia
Bleu lin Plante
In Spanish
Hortensia
Planta de lino azul
In Greek
υδραγεία
Μπλε Λίνο Φυτών
In Portuguese
Hortênsia
Planta do linho azul
In Polish
Hortensja
Niebieski roślin lnu
In Latin
Hibiscus
Blue linum Planta
Kingdom
Plantae
Plantae
Phylum
Anthophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Asterales
Linales
Family
Asteraceae
Linaceae
Genus
Centaurea
Linum
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Eudicots, Rosids
Tribe
Cynareae
-
Subfamily
Carduoideae
-
Number of Species
250180
1
27800
👆🏻