| Life cycle: | Biennial |
| Minimum cold hardiness: | Zone 12 +10 °C (50 °F) to +15.6 °C (60 °F) |
| Maximum recommended zone: | Zone 3 |
| Propagation: Seeds: | Provide light |
| Containers: | Needs repotting every 2 to 3 years Needs excellent drainage in pots |
| Miscellaneous: | Endangered |
| Conservation status: | Extinct (EX) |
