'Blue Heron' gives rise to sapphire-colored pendant flowers during May and June on bronze tinted stems. The blue-gray, heavily divided foliage provides an elegant backdrop for the unique flowers.
| Perennial | |
| Corydalis | |
| Corydalis | |
| Zone 5 | |
| 5-8 hours | |
| Moist, Sandy | |
| Plant with Brunnera and Astilbe | |
| Combine with Epimedium and ferns | |
| 8-10" | |
| 12-14" | |
| Spring | |
| Blue | |
| Moderate | |
| Mound | |
| Flower-tone | |
| Yes | |
| Yes | |
| Yes | |
| Yes | |
| Brunnera, Astilbe, Epimedium, Ferns |