Rick: Lisianthus are not really hard to start....they just take forever to grow. I've found germination to be fairly easy. But, once they sprout, it takes a while to get the first true set of leaves. Once they've got the first set of leaves, it takes a good 3 months before they are "seedling size". If you start early, it's really not difficult to grow these.
If you want to order seedlings, (although they will still need a little time before ready to plant outdoors), I recommend tsflowers.com. I ordered seedlings from Teresa for several years before deciding to grow my own, and I still purchase my seeds from her.