What are the solar terms for indoor flowers moving out of the house?

Look at the cold tolerance of specific plant varieties. If you are not sure, for example, after Tomb-Sweeping Day, southern flowers like Milan in central China can leave the room after Tomb-Sweeping Day, start taking them out on sunny days, put them back indoors at night, exercise for a week, and then put them outdoors completely. In case of strong wind and cold air, you need to take it back indoors to avoid it.