Tall spikes of vivid blue flowers bloom late in the season, brightening shady borders and damp areas. A native wildflower that thrives in moist soils and supports pollinators.
| Perennial | |
| Zone 4 | |
| 4-6 hours | |
| Moist, rich, well-drained | |
| 24-36" | |
| 12-18" | |
| Summer, Fall | |
| Yes | |
| Yes | |
| Yes | |
| Yes | |
| Yes | |
| Yes | |
| Chelone, Iris, Actaea, Carex |