breathingneon wrote:Beautiful flowers!
I'd been gifted some seeds, but wasn't able to get them to germinate sadly.
How long have you been growing them?
 Hello breathingneon:
It is nice to hear from you.
I have been growing daturas for about fifteen years now; however, this particular bed has been in place for about two years.  They are beautiful plants...they have a wonderfully intoxicating aroma after sunset that fills the whole garden!
I don't have the expertise to use them in an entheogenic manner but in very low doses as a tincture or if you extract the alkaloids, I have found them very useful for nausea, vertigo and stomach cramps.  I supose that they would be useful in an end-of-the-world anaesthetic situation but fortunately, I haven't had to get to that level yet! 
 Sometimes they are difficult to germinate but the seeds persist in the soil for a few years and will suddenly pop up after a cold snap (sort of like cold-stratification).  Have patience and keep trying, they might suddenly surprise you.
Kind regards and respect.
Vi veri vniversvm vivvs vici.