'White Swan' is a perennial garden favorite with white flowers, flatter petals than the species and prominent green to yellow cones. It will blooms from July to September.
| Perennial | |
| Echinacea | |
| Coneflower | |
| Zone 3 | |
| 6+ hours | |
| Clay, Dry, Moist, Sandy | |
| Plant with Campanula and Agastache | |
| Combine with Achillea and Nepeta | |
| 30-36" | |
| 1-2' | |
| Fall, Summer | |
| White | |
| 3-4" | |
| Rapid | |
| Upright | |
| Lime, Plant-tone | |
| Seedheads | |
| Yes | |
| Yes | |
| Yes | |
| Yes | |
| Campanula, Agastache, Achillea, Nepeta |