Stevia has been used for hundreds of years with no ill effects is what I have read. You can get plants for many of the same places that send you catalogs. I can’t remember them all, but I do remember that Guerneys and Burgess had the plants.
Thanks for the tip, greeneyes, about the Burgess and Guerneys having stevia plants.
BTW, how are the plants transported, do you know?