Chill sensitive, store at or above 60F or higher as even storage at 55F for a few days can result in damage.
Tidbits:
Named for Elizabeth and Sarah Fitton, authors of “Conversations on Botany” in 1823.
Recent Research Findings:
McConnell et al. (1982) showed that the Silver Nerve Plant (F. verschaffeltii var. argyroneura) is very chill sensitive when exposed to low (35-46F) temperatures for only a few hours. Chill injury symptoms were wilting and the subsequent development of dead areas on leaves.