A tall herbaceous perennial, with sunflower-like yellow flowers. Leaves large, but attractively deeply cut. A US prairie plant, needing full sun, average soil. Good for the back of the border.
Silphium laciniatum
Compass plant
Details
| Aspect | Sun or part shade |
| Flower Colour | Yellow |
| Flowering Period | Aug | Sep | Oct |
| Foliage | Not evergreen |
| Goes Well With | Nepeta, Symphyotrichum, Grasses |
| Growth Habit | Clump-forming |
| Hardiness | Fully hardy |
| Height | 2.5m |
| Soil | Most types |
| Spread | 1m |
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