'Royal Flush' is an impressive, sturdy variety that is deer resistant and produces huge, dark purple-blue hooded flowers on thick red stems. The early season foliage is red but will change to green before summer.
| Perennial | |
| Aconitum | |
| Monkshood | |
| Zone 3 | |
| 4-6 hours | |
| Clay, Loam, Sandy | |
| 40-48" | |
| 28-32" | |
| Fall, Summer | |
| Blue, Purple | |
| Upright | |
| Yes | |
| Yes | |
| Actaea, Hosta, Ferns, Astilbe |