PLease let me know if you have any luck I would LOVE to have some too!To me they seem related to the angel trumpets(Daturas).I am going to look for a site that seels that plant and see if I can find it wish me luck.

I bought mine from Kartuz nursery in California. He seems to have the biggest selection. They are related to brugmansias and I believe there are a number people trying to cross them in order to have purple and blue flowers. They are smaller and the flowers can be hidden by the leaves but they are still a great plant for the garden.