'The Rocket' produces spikes of golden yellow flowers that appear in July on tall black stems amid interesting dark green, maple-shaped leaves that have long toothed serrations.
| Perennial | |
| Ligularia | |
| Groundsel | |
| Zone 4 | |
| 4-6 hours | |
| Clay, Moist, Sandy, Wet | |
| Tall part-shade border perennial | |
| Consistently moist areas | |
| 4-6' | |
| 2-3' | |
| Summer | |
| Yellow | |
| Rapid | |
| Upright | |
| Plant-tone | |
| Yes | |
| Yes | |
| Yes | |
| Thalictrum, Astilbe, Phlox, Aruncus |