Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Centaurea (sen-TAR-ee-uh) (Info)
Species: cyanus (SY-an-us) (Info)
Cultivar: Black Ball
 One vendor has this plant for sale.
16 members have or want this plant for trade. Category:
Annuals
Height:
24-36 in. (60-90 cm)
Spacing:
6-9 in. (15-22 cm)
Hardiness:
Not Applicable
Sun Exposure:
Full Sun
Danger:
N/A
Bloom Color:
Dark Purple/Black
Bloom Time:
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Foliage:
Herbaceous
Silver/Gray
Velvet/Fuzzy-Textured
Other details:
This plant is attractive to bees, butterflies and/or birds
Average Water Needs; Water regularly; do not overwater
Self-sows freely; deadhead if you do not want volunteer seedlings next season
Flowers are good for drying and preserving
Soil pH requirements:
7.6 to 7.8 (mildly alkaline)
7.9 to 8.5 (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; sow indoors before last frost
From seed; direct sow after last frost
Seed Collecting:
Collect seedhead/pod when flowers fade; allow to dry
Allow seedheads to dry on plants; remove and collect seeds
Properly cleaned, seed can be successfully stored
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