Whorled Rosinweed (Silphium asteriscus var. trifoliatum)
PriceFrom $4.50
Excluding Sales Tax
Whorled Rosinweed is a 3’ to 6’ tall native perennial with 2” to 3” wide yellow daisy like flowers. A summer and fall flowering plant that grows best in dry to medium soils and full sun to some light shade. It grows well in gardens, wildflower meadows, and conservation and restoration plantings.
Species Details
| Common Name (Botanical Name) | Whorled Rosinweed (Silphium asteriscus var. trifoliatum) |
| Alternatative Common Names |
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| Botanical Synonyms | Silphium trifoliatum |
| Bloom Season | Summer |
| Group | Wildflowers/Forbs |
| Bloom Color | Yellow |
| Duration | Perennial |
| Soil moisture | Dry (Xeric);Medium (Mesic) |
| Soil texture | Medium (Silt/Loam);Fine (Clay) |
| Sun Exposure | Full Sun;Part Shade |
| Status | Native |
| Wetland status | |
| pH | Acidic;Neutral;Alkaline |
| pH Values | |
| Average height | 4-5ft |
| USDA Zones | 5a;5b;6a;6b;7a;7b;8a;8b; |
| RNS Region | 1;2;3;5 |
| Planting rate/Acre | Not Recommended |
| Seeds Per Lb. | 20800 |
| Seeds Per Oz | 1300 |
| Seeds Per Packet | 75 |
| Product Benefits | Aesthetic Value;Wildlife Cover;Wildlife Food;Wildlife Nesting;Nectar Source; |