Centaurea montana is an erect, stoloniferous, clump-forming perennial which features solitary, fringed, rich blue cornflowers (2″ diameter) with reddish blue centers and black-edged involucre bracts. Flowers appear in late spring atop unbranched stems typically growing 1-2′ tall. Gray-green, lance-shaped lower leaves to 7″ long. Commonly called mountain bluet, perennial cornflower or perennial bachelor’s button.
Genus name comes from the Greek word kentauros meaning centaur.
Position: Full sun, partial shade
Soil: Almost any soil, grows well in Ballyrobert
Flowers: May, June, July
Other features: Grows well in Ballyrobert, Bees and Butterflies, Great Ground Cover
Hardiness: Fully hardy – grows well in Ballyrobert!
Habit: Bushy, Clump forming
Height: 15 – 45 cm (0.5 – 1.5 ft)
Spread: 15 – 45 cm (0.5 – 1.5 ft)
Time to full growth: 2 to 5 years
Plant type: Herbaceous Perennial
Colour: Purple, green