Tennessee, an odd time of year to start seeds, but that's OK. Seeds are better in your case with a heat mat, they germinate best at 75/80 degrees. They are tropical plants.
Another vast site is siamadenium.com Takes a while to download, but you will be immersed for too much time, I always am!
OK, welcome to the forum, Sheryl, and hope to see you again!
Melissa