Inula helenium
Elecampane, Horse-heal
Family: Asteraceae Aster
| Type | Annual, perennial |
| USDA Hardiness range | n/a |
| Exposure | Partial shade to full sun |
| Bloom color | Yellow |
| Bloom time | Mid Summer to Early Fall |
| Water needs | Moist |
| Landscape uses | Specimen, woodland garden |
| Height | 36" to 6' / 90cm to 1.80m |
| Spread | 36" to 4' / 90cm to 1.20m |
| Growth rate | Moderate |
| Persistence | Deciduous, broadleaf |
| Leaf color | Green |
| Fruit color | n/a |
| Soil type | Loamy |
| Form | Upright or erect |