Life Span
Annual and Perennial
Perennial
Type
Tender Perennial
Tree
Origin
Southern Europe, Mediterranean
North America, United States, Northwestern United States, Alaska, California, Canada
Types
Silver Lace, Cirrus
-
Number of Varieties
330
0
40000
👆🏻
Habitat
Coastal Regions, Warmer regions
Lowland evergreen rainforest
USDA Hardiness Zone
7-114-7
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
3a, 3b, 4, 5, 6, 7, 14, 15, 16, 17
Habit
Cushion/Mound-forming
Pyramidal
Plant Size
Minimum Height
20.30 cm1,370.00 cm
0
3900
👆🏻
Minimum Width
30.50 cm610.00 cm
0
6350
👆🏻
Plant Color
Flower Color
White, Yellow, Purple
Yellow, Red, Coral
Flower Color Modifier
Bicolor
Bicolor
Fruit Color
Tan
Brown
Leaf Color in Spring
Blue Green, Silver
Green, Dark Green
Leaf Color in Summer
Blue Green, Silver
Dark Green
Leaf Color in Fall
Blue Green, Silver
Dark Green
Leaf Color in Winter
Light Green
-
Shape
Leaf Shape
Irregular
Ovate
Thorns
✔
✘
✔
✘
Plant Season
Spring, Summer, Fall, Winter
Spring, Summer, Fall
Growing Conditions
Sunlight
Full Sun
Full Sun, Partial Sun, Partial shade
Growth Rate
Medium
Fast
Type of Soil
Clay, Loam, Sand
Loam, Sand
The pH of Soil
Acidic, Neutral, Alkaline
Acidic, Neutral, Alkaline
Soil Drainage
Well drained
Average
Bloom Time
Early Summer, Summer, Late Summer
Early Spring
Repeat Bloomer
✔
✘
✔
✘
Tolerances
Drought
Maritime exposure, Salt water
Where to Plant?
Container, Ground
Ground
How to Plant?
Seedlings, Stem Planting
Layering, 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
Average Water Needs
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
Loam, Sand
Soil Drainage Capacity
Well drained
Average
Sun Exposure
Full Sun
Full Sun, Partial Sun, Partial shade
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, Nitrogen
Pests and Diseases
Blight, Downy mildew, Powdery mildew, Red blotch, Rust, White mold
-
Plant Tolerance
Drought
Maritime exposure, Salt water
Flowers
Insignificant
Insignificant
Flower Petal Number
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
Glossy
Evergreen
✔
✘
✔
✘
Invasive
✔
✘
✔
✘
Self-Sowing
✔
✘
✔
✘
Attracts
Flying insects, Insects
Insects
Allergy
Avoid during Pregnancy, Skin irritation, Skin rash, Toxic
-
Uses
Aesthetic Uses
Showy Purposes
-
Beauty Benefits
-
Skin Problems
Edible Uses
✔
✘
✔
✘
Environmental Uses
Air purification, Food for insects, Prevent Soil Erosion
Air purification, Prevent Soil Erosion, Shadow Tree
Plant Benefits
Medicinal Uses
Headache, Menstrual Disorders, Migraines
Anodyne, Appetizer, Astringent
Part of Plant Used
Leaves
Flowers, Inner Bark, Sap
Other Uses
Employed in herbal medicine, Showy Purposes, Used as Ornamental plant, Used for its medicinal properties
Used as a dye, used for making charcoal, Used for making informal hedge
Used As Indoor Plant
✔
✘
✔
✘
Used As Outdoor Plant
✔
✘
✔
✘
Garden Design
Bedding Plant, Container, Cutflower, Edging, Mixed Border, Rock Garden / Wall
Screening / Wind Break, Shade Trees
Botanical Name
CENTAUREA cineraria
ALNUS rubra
Common Name
Silver dust
Oregon Alder, Red Alder
In Hindi
डस्टी मिलर
red alder
In German
Dusty Miller
rot-Erle
In French
Dusty Miller
aulne rouge
In Spanish
Dusty Miller
aliso rojo
In Greek
Dusty Miller
κόκκινη σκλήθρα
In Portuguese
Dusty Miller
amieiro vermelho
In Polish
Dusty Miller
czerwony olcha
In Latin
Dusty Cicero
red alnus
Kingdom
Plantae
Plantae
Phylum
Anthophyta
Magnoliophyta
Class
Magnoliopsida
Magnoliopsida
Order
Asterales
Fagales
Family
Asteraceae
Betulaceae
Genus
Centaurea
Alnus
Clade
Angiosperms, Asterids, Eudicots
Angiosperms, Eudicots, Rosids
Tribe
Cynareae
-
Subfamily
Carduoideae
-
Number of Species
135
1
27800
👆🏻