Centaurea nigra
A long-flowering meadow plant with thistle-like purple flowers, one of the best native nectar sources.
Soil: well-drained, poor, chalky
Sunlight: full sun
Height: 80 cm
Spacing: 45 cm
Zones: 4, 5, 6, 7
Hardiness: 4/5
Care Level: very low
Watering: Every 14 days
Bloom: June, September
