I have put them outside for the summer, and brought them in again at the first sign of cold and they have been fine. I think it would work OK under a carport, as I think they don't like direct sunlight for too long. Best of luck.
Just a word to reassure you, local parks depts often use them as 'dot plants' as part of summer bedding displays and also as a centre piece in hanging baskets. Be sure to harden them off first before planting out and they should be fine,