Grows very well in South Florida humidity/sandy soil. Send a self-addressed stamped envelope and ill put about a dozen seeds in it for you. Example below:
I really love this purple datura but I fear I have none of the items you are looking for in trade. What I do have are some unusual seeds but you may/may not be interested. I have some giant castors (and I mean really giant:). Pawlomia tree seeds but these would probably be invasive in your zone. Irish tassel flower, small orange buttons. I do have several kinds of bamboo but I don't quite know how they would do now (shipping-wise) that it is winter. I also have the blueberry, but same thing on that ~ everything is cold and dormant now.
I had the purple datura years ago, but lost out of it (it is an annual here in 7a).
I had the purple datura years ago, but lost out of it (it is an annual here in 7a).