The deep true blue flowers of 'Guardian Blue' are accented with white centers on tall spires during June and again in the fall with appropriate deadheading. A vigorous plant that is both disease and humidity resistant!
| Perennial | |
| Delphinium | |
| Larkspur | |
| Zone 4 | |
| 5+ hours | |
| Moist, Sandy | |
| Accent perennial or cut flower | |
| Tall back of the border accent | |
| 4-6' | |
| 2-3' | |
| Summer | |
| Blue | |
| 2-3' | |
| Rapid | |
| Upright | |
| Straw | |
| Lime, Plant-tone | |
| Yes | |
| Yes | |
| Geranium, Achillea, Paeonia, Leucanthemum |