botanical information about Oenothera biennis
- Botanical name: Oenothera biennis
- Genus: Oenothera
- Family: Oenotheraceae
- Other names: teunisbloem
Features Oenothera biennis
| height: | - cm |
| flowering: | July - August |
| color: | sulfur yellow |
| winter zone: | 10 [susceptible to frost] |
