I have been searching for info on care for the winter months here. We usually have mild winters, occational cold snaps. Winter chills usually get into the 40s, occational 30s. I know some orchids require a cold period in order to bloom in the spring. I have the winter info on Dens, but that is about it. Do not really need care down to species, but Genre would be great. Is there a sight that has this info by geographical location?