Hardy in zones 4 through 9, these perennials produce spikes of bell-shaped flowers that come in reds, greens, yellows, oranges, purples, and even variegated varieties. While the blooms arrive in ...
Here at the West Central Research and Outreach Center, we trialed a total of 300 annual flower cultivars, 100 new perennial varieties (on top of the 300 cultivars from previous years), 15 rose ...