| Lithodora | |
| Purple Gromwell |
| Plant Habit: | Tree |
| Life cycle: | Biennial |
| Minimum cold hardiness: | Zone 9b -3.9 °C (25 °F) to -1.1 °C (30 °F) |
| Maximum recommended zone: | Zone 4b |
| Flowers: | Nocturnal |
| Flower Time: | Late winter and early spring Late summer or early fall Other |
| Wildlife Attractant: | Butterflies |
| Posted by Mindy03 (Delta KY) on Mar 25, 2012 7:03 AM cacl eebVsfbe st nu oaorehfe y .auoernorl [ Reply to this comment | |
