Life Span
Annual and Perennial
Perennial
Type
Tender Perennial
Perennial
Origin
Southern Europe, Mediterranean
World, Pandemic, North America, Europe, Africa, Asia
Types
Silver Lace, Cirrus
-
Number of Varieties
330
0
40000
👆🏻
Habitat
Coastal Regions, Warmer regions
Bluffs, Sandy stream banks, Wooded slopes
USDA Hardiness Zone
7-114-10
0
99
👆🏻
AHS Heat Zone
12-1
10-1
Sunset Zone
H1, H2, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
2b, 3a, 3b, 4, 5, 6
Habit
Cushion/Mound-forming
Clump-Forming
Plant Size
Minimum Height
20.30 cm10.20 cm
0
3900
👆🏻
Minimum Width
30.50 cm15.20 cm
0
6350
👆🏻
Plant Color
Flower Color
White, Yellow, Purple
White, Purple, Lavender, Blue Violet
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Tan
-
Leaf Color in Spring
Blue Green, Silver
Green
Leaf Color in Summer
Blue Green, Silver
Green
Leaf Color in Fall
Blue Green, Silver
Green
Leaf Color in Winter
Light Green
Light Green
Shape
Leaf Shape
Irregular
Long Linear
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer
Growing Conditions
Sunlight
Full Sun
Full Sun, Partial Sun
Growth Rate
Medium
Medium
Type of Soil
Clay, Loam, Sand
Clay, 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
Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Drought
Where to Plant?
Container, Ground
Container, Ground
How to Plant?
Seedlings, Stem Planting
Seedlings, Stem Planting, Transplanting
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
Medium, 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
Acidic, Neutral, Alkaline
Soil Type
Clay, Loam, Sand
Clay, Loam, Sand
Soil Drainage Capacity
Well drained
Well drained
Sun Exposure
Full Sun
Full Sun, Partial Sun
Pruning
Remove dead leaves, Remove deadheads
Remove damaged leaves, Remove dead branches, Remove dead leaves
Fertilizers
fertilize every 2-3 weeks while growing, Nitrogen, Phosphorous, Potassium
All-Purpose Liquid Fertilizer
Pests and Diseases
Blight, Downy mildew, Powdery mildew, Red blotch, Rust, White mold
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
Medium
Foliage Sheen
Matte
Matte
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Flying insects, Insects
Bees, Insects
Allergy
Avoid during Pregnancy, Skin irritation, Skin rash, Toxic
Skin irritation
Uses
Aesthetic Uses
Showy Purposes
Beautification, Ground Cover, Landscape Designing, Showy Purposes
Beauty Benefits
-
-
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification, Food for insects, Prevent Soil Erosion
Air purification
Plant Benefits
Medicinal Uses
Headache, Menstrual Disorders, Migraines
Liver problems, Skin Disorders, Treatment of ulcers
Part of Plant Used
Leaves
Flowers, Leaves
Other Uses
Employed in herbal medicine, Showy Purposes, Used as Ornamental plant, Used for its medicinal properties
Employed in herbal medicine, Used as a spice
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Bedding Plant, Container, Cutflower, Edging, Mixed Border, Rock Garden / Wall
Bedding Plant, Cutflower, Mixed Border, Rock Garden, Wall
Botanical Name
CENTAUREA cineraria
IRIS cristata
Common Name
Silver dust
Crested Iris
In Hindi
डस्टी मिलर
कलगी आइरिस
In German
Dusty Miller
Crested Iris
In French
Dusty Miller
Crested Iris
In Spanish
Dusty Miller
Crested Iris
In Greek
Dusty Miller
Crested Iris
In Portuguese
Dusty Miller
Crested Iris
In Polish
Dusty Miller
Czubaty Iris
In Latin
Dusty Cicero
iubatum Iris
Kingdom
Plantae
Plantae
Phylum
Anthophyta
-
Class
Magnoliopsida
Liliopsida
Order
Asterales
Asparagales
Family
Asteraceae
Iridaceae
Genus
Centaurea
Iris
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Monocots
Tribe
Cynareae
Irideae
Subfamily
Carduoideae
Iridoideae
Number of Species
1210
1
27800
👆🏻