Linda, Burpee has a "blue" rimmed one that really looks purple and it's plants, not seeds, but when I got mine from them last year they were very nice plants. They're like 12 plants for $30. For me it was worth it because I sell bouquet at farmers market. I can't remember where you are located but I have had lisianthus winter over here in GA and I think I remember readings somewhere of someone who overwintered in zone 7. I do give them some protection, but not much. Hopefully they will live through this cold snap but here's the link to the Burpee page
http://www.burpee.com/flowers/...