USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
I have been trying to get rid of this Lady Bells (Adenophora latifolia) plant for over 10 years. It is in the flowerbeds around the hous...Read More
Hardy plants that will survive tough conditions. Easily propagated by dividing. Have had no luck with seeds. Good cut flower that looks a...Read More
Very similar to adenophora lilifolia. Mine haven't bloomed yet (seed grown) so can add a different "Note" rating when they do.... so far...Read More