| | | Family | Compositae | | Plant Type | herbaceous perennial | | Zone | USDA: 4a - 8b RHS: H EGF: H1 - H4 Australia: 1 - 2 | | Care Level | low, easy, suitable for beginners. | | Height | 0.6 - 1.8 m (2 - 6 ft) | | Spread | 30 - 90 cm (1 - 3 ft) | | Light | full sun | | Soil Moisture | average, well-drained | | Soil Type | | | Soil pH | | | | Description | The herbaceous perennial Silphium integrifolium (rosinweed) bears showy blossoms during mid-summer to early fall. | | Special Characteristics | This herbaceous perennial attracts birds and butterflies to your garden. | | Cautions | Depending upon your local conditions, Silphium integrifolium (rosinweed) may be invasive. | | |