Kim and I both love daturas. It is one of our favorite annuals to grow. According to many articles I've read, daturas are often perennial but ours have never made it through a winter. We always have plenty of volunteers from seeds and I potted up a couple of them for this year.
This week one of them developed a bloom, you can see how large they are.
In addition to gorgeous flowers, they have a heavenly scent. You can order seeds from Thompson & Morgan or Select Seeds.