Centaurea hypoleuca 'John Coutts'
John Coutts Knapweed, Bachelors' Button
Family: Asteraceae Aster
| Type | Perennial |
| USDA Hardiness range | 3A - 9B |
| Exposure | Full sun |
| Bloom color | Pink |
| Bloom time | Mid Summer to Early Fall |
| Water needs | Dry |
| Landscape uses | Border, massing, rock garden |
| Height | 12" to 24" / 30cm to 60cm |
| Spread | 12" to 18" / 30cm to 45cm |
| Growth rate | Moderate |
| Persistence | Deciduous, broadleaf |
| Bloom attributes | Suitable for cut flowers, fragrant flowers |
| Leaf color | Green |
| Fruit color | n/a |
| Soil type | Sandy, loamy |
| Form | Upright or erect |
| Attributes and features | Naturalizing |