Vinca at the door

It's February and the oak leaves litter the sidewalk around the house. The screen door to my room never fit tightly on its own. But even in Florida the cool winter evenings send living things into shuddering fits. Witness the warmth seeking Vincas as they try to move indoors. 

These Vinca must like me. They refuse to stay out of doors.

I assume it's the warm air, but maybe it's the musky smell. 

I treat them like visitors and leave the door unlatched.