blue flower of centaurea scabiosa also known as greater knapweed, beautiful colorful decorative garden plant which attracts

asterceae beautiful bloom blooming blossom botanical bud centaurea close closeup color cornflower crop field flora floral flower fresh garden green herb knapweed landscape meadow medicinal melliferous natural nature nigra perennial petal pink plant purple rough rural scabiosa seasonal spring stem summer sunny the violet wild wildflower wildgrowing