botanical information about Centaurea cyanus 'Blue Ball'
- Botanical name: Centaurea cyanus 'Blue Ball'
- Genus: Centaurea
- Family: Asteraceae
- Other names: Centaurea - Korenbloem Blue Ball - Centaurea cyanus Blue Ball - Centaurea cyanus Blue Ball - double bleue - Centaurea cyanus gefüllte Blue Ball
++
