Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Centaurea (sen-TAR-ee-uh) (Info)
Species: sulphurea (sul-FER-ee-uh) (Info)
Category:
Annuals
Biennials
Height:
24-36 in. (60-90 cm)
36-48 in. (90-120 cm)
Spacing:
Unknown - Tell us
Hardiness:
Not Applicable
Sun Exposure:
Full Sun
Danger:
Unknown - Tell us
Bloom Color:
Pale Yellow
Bloom Time:
Late Spring/Early Summer
Mid Summer
Foliage:
Herbaceous
Other details:
May be a noxious weed or invasive
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater
Self-sows freely; deadhead if you do not want volunteer seedlings next season
Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information:
Unknown - Tell us
Propagation Methods:
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; direct sow after last frost
Seed Collecting:
Allow seedheads to dry on plants; remove and collect seeds
Properly cleaned, seed can be successfully stored
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
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