Centaurea montana
Common Name: Perennial cornflower, Bachelor's buttons, mountain bluet
Type: Herbaceous perennial Family: Asteraceae Hardiness Zone: 3-8 Sunlight: Full sun to part shade Exposure: Exposed or sheltered Soil: Average to poor soil Moisture: Dry to medium moisture, drought tolerant Plant Height x Width: 1-2' x 1-1.5' Leaf: Gray-green, lance shaped lower leaves Flower: Solitary, fringed rich-blue cornflowers with reddish-blue centres Bloom Time: Mid-spring Bloom Size: Small Maintenance: Can be invasive in optimum conditions, do not allow to go to seed, often needs to be staked, shear back to ground after flower. Divide every other year Landscape use: Flower borders, high maintenance, low value plant Pest and Disease: Prone to mildews, downy and white and rust Native Range: Central and southern Europe Planting Instructions: Can be invasive under optimum conditions Propagation: Seed |