Annuals
Centaurea ragusina 'Silver Swirl' (Silver Knapweed)
Centaurea ragusina 'Silver Swirl'
Also known as Silver Swirl Dusty Miller
Size
Available at our Langlois nursery
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About This Plant
Centaurea ragusina 'Silver Swirl' (Silver Knapweed), 'Silver Swirl', is valued in PNW gardens for its character and seasonal interest.
An ornamental annual prized for season-long flowering and color in containers, beds, and borders. Plant after last frost; remove after fall frost.
Full sun to part shade suits this plant. Plant in moist, well-drained, fertile soil. Hardy USDA Zone annual. Frost-tender; treat as a single-season plant. Many self-sow. Heat-tolerance and bloom color depend on cultivar.
Plant Details
- Botanical
- Centaurea ragusina 'Silver Swirl'
- Common name
- Silver Swirl Dusty Miller
- Mature size
- 12-18 in tall × 18-24 in wide
- Growth rate
- Moderate
- Bloom time
- Summer
- Bloom color
- Pink, White, Yellow, Red, Purple, Orange
- Foliage color
- Gold-chartreuse
Care Notes
Garden Attributes
- Pacific NW native
- Deer resistant
- Coastal suitable
- Grown organically
- Pollinator value: Bees, Native bees, Butterflies
- Wildlife: Pollinator support
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Our inventory changes with the seasons. Before you drive out, give us a call or text, we'll confirm availability and can hold a plant for you.