Centaurea cineraria 'cirrus'
Pronunciation: Sen-tore-ee-uh sin-ur-air-ee-uh
Family: Asteraceae
Common Name: Cirrus dusty miller
Cultivar: Cirrus
Plant Type:
- perennial
Height to: 12"
Width to: 12"
USDA Hardiness Zones:
- 10 to 0ºF ZONE 7
- 20 to 10ºF ZONE 8
- 30 to 20ºF ZONE 9
- 40 to 30ºF ZONE 10
- 50 to 40ºF ZONE 11
Sun Exposure:
- part sun
- full sun
Bloom Season:
- mid summer
Bloom Description: Cirrus dusty miller (centaurea cineraria) produce loose, branching cymes of mustard-yellow flowerheads, 1/2-1" across. Remove them to preserve the foliage effect.
Soil Type: Cirrus dusty miller (centaurea cineraria) prefer well drained soil
Pests and Diseases: Cirrus dusty miller (centaurea cineraria) are susceptible to white mold, rust, downy and powdery mildew, thread blight and southern blight
Propagation: Sow cirrus dusty miller (centaurea cineraria) seed in containers in cold frame in spring and divide in spring or autumn
Notes for Identification: Cirrus dusty miller (centaurea cineraria) is a mound forming, evergreen, subshrub, often grown as an annual, with variable, oblong-ovate, pinnatisect or pinnatifid, felted, silver gray leaves, to 3-6" long. Source: various resources including the american horticultural society a to z encyclopedia of garden plants
USDA Heat Zones (days above 86ºF):
- Less then 1 day ZONE 1
- 1 to 7 days ZONE 2
- 7 to 14 days ZONE 3
- 14 to 30 days ZONE 4
- 30 to 45 days ZONE 5
- 45 to 60 days ZONE 6
- 60 to 90 days ZONE 7
- 90 to 120 days ZONE 8
- 120 to 150 days ZONE 9
- 150 to 180 days ZONE 10
- 180 to 210 days ZONE 11
- Greater then 210 ZONE 12
Submitted by: Guest
Seed photo: 0
Seed Label: 0
Located in: Perennials