Caladiums are a subtropical – tropical perennials. In their native environment they are actively growing during the rainy season and dormant during the dry season. From our experience they have a variety specific (genetic) growing period. After a certain number, depending on variety, of growing days they go into a resting dormant period. The variety specific growing period can be lengthened, with warm, moist and nutrient rich growing conditions or shortened by stress such as drought or cold. After the variety specific growing period ends there is an obligatory rest period that cannot be avoided. The period of rest, dormancy, again is variety specific and can be as little as 1 week to as much as 9 weeks depending on the variety. Once the rest period is met, growth will resume provided good growing conditions are present.