Centaurea nigra - Knoopkruid (30)

€ 0,45

Hoogte: 60 cm.

Bloeit: jun-aug

Type: HP

Winterhard in: zones 4-9 (-20 C)



Inheemse korenbloemsoort maar ook heel geschikt voor de border. Lokt tientallen bijen.



Zaai-instructies: Donkerkiemer. Kiem in 2-4 wk, 18-23C

Plant-instructies: Kalkrijke grond, zonnige plek




Also known as Black Knapweed or Hardheads. A common and familiar plant with thistle like flower heads but spineless leaves and stem. The flower heads are purple or occasionally white and exist in two forms, rayed and un-rayed. The seeds were taken from plants with un-rayed flowers. Behind the flower is a hard head of overlapping bracts which sits upon the slightly swollen end of the stem.


Height: 60 cm.

Flowers: jun-aug

Type: HP

Hardy in: zones 4-9 (-20 Celsius)


Sowing instructions: Needs dark to germinate. Will do so in 14-30 days at 18-23 Celsius


Planting instructions: prefers a sunny spot in light, well drained soil.