Life Span
Annual and Perennial
Annual and Perennial
Type
Tender Perennial
Flowering Plants, Shrubs
Origin
Southern Europe, Mediterranean
World/Pandemic, North America, Europe, Russia/Siberia, China, Korea
Types
Silver Lace, Cirrus
Bigleaf hydrangea, Hortensia, Smooth hydrangea, Oakleaf hydrangea, Annabelle
Number of Varieties
3100
0
40000
👆🏻
Habitat
Coastal Regions, Warmer regions
Forest edges, Hillside, Woods
USDA Hardiness Zone
7-112-11
0
99
👆🏻
AHS Heat Zone
12-1
7 - 1
Sunset Zone
H1, H2, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
7, 8, 9, 12, 13, 14, 15, 16, 18, 19, 20, 21, 22, 23, 24
Habit
Cushion/Mound-forming
Upright/Erect
Plant Size
Minimum Height
20.30 cm30.00 cm
0
3900
👆🏻
Minimum Width
30.50 cm30.00 cm
0
6350
👆🏻
Plant Color
Flower Color
White, Yellow, Purple
Blue, Sky Blue, Indigo, Dark Blue
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Tan
Brown, Sandy Brown
Leaf Color in Spring
Blue Green, Silver
Sea Green, Gray Green
Leaf Color in Summer
Blue Green, Silver
Sea Green, Gray Green
Leaf Color in Fall
Blue Green, Silver
Sea Green, Gray Green
Leaf Color in Winter
Light Green
Light Green
Shape
Leaf Shape
Irregular
Oblovate
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall
Growing Conditions
Sunlight
Full Sun
Full Sun, Partial Sun
Growth Rate
Medium
Very Fast
Type of Soil
Clay, Loam, Sand
Loam, Sand
The pH of Soil
Acidic, Neutral, Alkaline
Acidic, Neutral, Alkaline
Soil Drainage
Well drained
Well drained
Bloom Time
Early Summer, Summer, Late Summer
Indeterminate
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Drought
Where to Plant?
Container, Ground
Container, Ground, Pot
How to Plant?
Seedlings, Stem Planting
Seedlings
Plant Maintenance
Medium
Medium
Watering Plants
Watering Requirements
Do Not over Water, Never Over-water, Requires regular watering, Requires watering in the growing season, Water Deeply
Keep ground moist, Requires a lot of watering, 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
Acidic, Neutral, Alkaline
Slightly Acidic
Soil Type
Clay, Loam, Sand
Loamy
Soil Drainage Capacity
Well drained
Loamy
Sun Exposure
Full Sun
Full Sun
Pruning
Remove dead leaves, Remove deadheads
Prune to control growth, Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
fertilize every 2-3 weeks while growing, Nitrogen, Phosphorous, Potassium
Compost
Pests and Diseases
Blight, Downy mildew, Powdery mildew, Red blotch, Rust, White mold
Bacterial leaf spot, Botrytis Blight, Leafminers, Mealybugs, Mushroom root rot
Plant Tolerance
Drought
Drought
Flowers
Insignificant
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
Medium
Foliage Sheen
Matte
Matte
Evergreen
✔
✘
✔
✘
Invasive
Sometimes
Sometimes
Self-Sowing
✔
✘
✔
✘
Attracts
Flying insects, Insects
Butterflies
Allergy
Avoid during Pregnancy, Skin irritation, Skin rash, Toxic
Chest tightness, Diarrhea, Dizziness, Nausea, Vomiting
Uses
Aesthetic Uses
Showy Purposes
Beautification, Bouquets, Landscape Designing, Showy Purposes
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification, Food for insects, Prevent Soil Erosion
Air purification, Food for insects, Indoor Air Purification, Prevent Soil Erosion, Very little waste
Plant Benefits
Medicinal Uses
Headache, Menstrual Disorders, Migraines
Fever, Kidney problems, Urinary tract problems
Part of Plant Used
Leaves
Flowers, Root
Other Uses
Employed in herbal medicine, Showy Purposes, Used as Ornamental plant, Used for its medicinal properties
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 Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Bedding Plant, Container, Cutflower, Edging, Mixed Border, Rock Garden / Wall
Container, Herb
Botanical Name
CENTAUREA cineraria
CENTAUREA cyanus
Common Name
Silver dust
Batchelor's Buttons, Cornflower
In Hindi
डस्टी मिलर
Hydrangea
In German
Dusty Miller
Hortensie
In French
Dusty Miller
Hortensia
In Spanish
Dusty Miller
Hortensia
In Greek
Dusty Miller
υδραγεία
In Portuguese
Dusty Miller
Hortênsia
In Polish
Dusty Miller
Hortensja
In Latin
Dusty Cicero
Hibiscus
Kingdom
Plantae
Plantae
Phylum
Anthophyta
Anthophyta
Class
Magnoliopsida
Magnoliopsida
Order
Asterales
Asterales
Family
Asteraceae
Asteraceae
Genus
Centaurea
Centaurea
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Asterids, Eudicots
Tribe
Cynareae
Cynareae
Subfamily
Carduoideae
Carduoideae
Number of Species
1250
1
27800
👆🏻