Life Span
Annual and Perennial
Perennial
Type
Flowering Plants, Shrubs
Tender Perennial
Origin
World/Pandemic, North America, Europe, Russia/Siberia, China, Korea
North America, Mexico, Latin America and the Caribbean, Caribbean, Central America, South America
Types
Bigleaf hydrangea, Hortensia, Smooth hydrangea, Oakleaf hydrangea, Annabelle
Cryptanthus 'Absolute Zero'
Cryptanthus 'Agate'
Cryptanthus 'Alberta'
Cryptanthus 'Alpine Frost'
Number of Varieties
100480
0
40000
👆🏻
Habitat
Forest edges, Hillside, Woods
Lowland evergreen rainforest, Rainforest, Shaded sites, Wild
USDA Hardiness Zone
2-11-9999
0
99
👆🏻
AHS Heat Zone
7 - 1
-
Sunset Zone
7, 8, 9, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24
-
Habit
Upright/Erect
-
Plant Size
Minimum Height
30.00 cm20.00 cm
0
3900
👆🏻
Minimum Width
30.00 cm15.00 cm
0
6350
👆🏻
Plant Color
Flower Color
Blue, Sky Blue, Indigo, Dark Blue
-
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Brown, Sandy Brown
-
Leaf Color in Spring
Sea Green, Gray Green
-
Leaf Color in Summer
Sea Green, Gray Green
-
Leaf Color in Fall
Sea Green, Gray Green
-
Leaf Color in Winter
Light Green
Light Green
Shape
Leaf Shape
Oblovate
Linear
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall
Spring, Summer, Fall, Winter
Growing Conditions
Sunlight
Full Sun, Partial Sun
-
Growth Rate
Very Fast
-
Type of Soil
Loam, Sand
-
The pH of Soil
Acidic, Neutral, Alkaline
-
Soil Drainage
Well drained
-
Bloom Time
Indeterminate
-
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Drought
Where to Plant?
Container, Ground, Pot
Container, Ground, Pot
How to Plant?
Seedlings
Cuttings, Leaf Cutting, 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, Do not water excessively, Keep the Soil well drained
In Summer
Lots of watering
Lots of watering
In Spring
Moderate
Moderate
In Winter
Average Water
Average Water
Soil
Soil pH
Slightly Acidic
-
Soil Type
Loamy
-
Soil Drainage Capacity
Loamy
-
Sun Exposure
Full Sun
-
Pruning
Prune to control growth, Remove damaged leaves, Remove dead branches, Remove dead leaves
Pinch or prune as they grow to promote branching and bushiness, Pinching, Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
Compost
Does not require fertilizer once established
Pests and Diseases
Bacterial leaf spot, Botrytis Blight, Leafminers, Mealybugs, Mushroom root rot
Pests and diseases free, Red blotch
Plant Tolerance
Drought
Variety of soil types
Flowers
Showy
Showy
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
-
Foliage Sheen
Matte
-
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Butterflies
Ladybug beetles, Mealybugs, Scale Insects
Allergy
Chest tightness, Diarrhea, Dizziness, Nausea, Vomiting
-
Uses
Aesthetic Uses
Beautification, Bouquets, Landscape Designing, Showy Purposes
Beautification, Borders, Decorating walls, 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
-
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, useful as a ground cover
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Container, Herb
-
Botanical Name
CENTAUREA cyanus
CRYPTANTHUS
Common Name
Batchelor's Buttons, Cornflower
Cryptanthus, Earth Star
In Hindi
Hydrangea
Earth Star
In German
Hortensie
Erdstern
In French
Hortensia
Terre étoile
In Spanish
Hortensia
estrella de la tierra
In Greek
υδραγεία
γη αστεριών
In Portuguese
Hortênsia
Estrela da terra
In Polish
Hortensja
Gwiazda ziemi
In Latin
Hibiscus
terra, stella
Kingdom
Plantae
Plantae
Phylum
Anthophyta
Tracheophyta
Class
Magnoliopsida
Liliopsida
Order
Asterales
Bromeliales
Family
Asteraceae
Bromeliaceae
Genus
Centaurea
Cryptanthus
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Commelinids, Monocots
Tribe
Cynareae
-
Subfamily
Carduoideae
Bromelioideae
Number of Species
25050
1
27800
👆🏻