Centaurea 'Snowy Owl'Centaurea 'Snowy Owl'

Centaurea ‘Snowy Owl’

2020 – Best New Variety Winner at the Colorado State University Flower Trial Garden. Large, velvety, white leaves contrast beautifully in mixed containers and summer borders. This tough annual loves full sun and grows into a well-branched, cushiony mound.

USDA Hardiness Zone(s): 9-11
Size (HT/W/FL HT): 18″ / 16″ / 20″
Exposure: Full Sun
Bloom Time(s): July, August, September, October

Common Name Silver-Knapweed
Family Asteraceae
species ragusina
Plant Type
US Patent # PPAF
EU Grant # PBRAF
Bloom Time , , ,
Flower Color
Foliage Color ,
Dormancy --
Growth Habit
Growth Rate
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How Different? --
Landscape Value Use in potted containers, mass plantings, edging or summer borders.
Most Active Growing Season
Persistence Annual
Size (HT/W/FL HT) 18" / 16" / 20"
Soil (Garden) Well drained with a moderate organic content.
Water (Garden) Average
Special Uses --
Comments --
Water (Greenhouse) Dry moderatley between waterings.
EC 1.0- 1.5
pH 5.5 – 7.0
Fertility Needs 150 – 200 ppm
Notes High light important to maintain plant health. Do not overwater.
Finish Time to 4″ 6 – 8 weeks
Finish Time to Gallon 10 – 12 weeks
Day Length for Flowering
Centaurea 'Snowy Owl' - Product Profile
Centaurea 'Snowy Owl' - Growing Recipe

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