If you have enough of them, do a test both ways. These are some very tough plants that will take cold temps as seedlings. I have one in a pot that is about 12 inches tall. It will be planted very soon in the place where I want it to grow, but I cant compare my conditions to yours since I am z7 NC. I would also scatter some of the seed outdoors, too, at this time for insurance. You can be sure they will certainly come up, as they are quite easy from seed. You can get all the seed you need at the seed exchange, or I can send you some double pink. I only have 20 seeds and can share maybe 10 of them. Depends on your color preference.

THANKS QUIRKPOD ; THAT'S A GOOD IDEA. I have never tried to grow them before,so I did not know if they were very hardy or not. I think I'll set them out for the most part and try to keep one indoor just for the fun of it. I have a variety of colors,but my favorite is the blue..Thanks for the offer. marymac