Oenothera biennis (Common Evening Primrose)
Botanical Information
| Family | Onagraceae |
| Genus | Oenothera |
| Species | biennis |
| Category | Wildflowers & Weeds |
Details
| USDA Hardiness Zone | 5 - 8 |
| USDA Hardiness Ref. | |
| Canadian Hardiness Zone | 4a - 7a |
| Canada Hardiness Ref. | |
| RHS Hardiness Zone | H5 - H7 |
| RHS Hardiness Ref. | |
| Temperature (°C) | -23 - (-9) |
| Temperature (°F) | -10 - 15 |
| Height | 60 - 180 cm |
| Growth | Fast |
| Flowering Period | July, August, September |
Description and Growing Information
Photographs
