I ordered datura seeds and received 10 seeds in a clear ziplock packet, no label or instructions. I planted 7 undamaged seeds and only 1 came up. It is not a datura, but no one seems to know what it is & last week it surprised me with a tiny delicate flower. the flowers open from pouches and last for only a few hours. I tried to load a picture of that, but only one shot could be attached.
It appears to be a plant called Commelina communis, an annual herbaceous perennial. Its common name is Asiatic day lily because its flowers do only last a day. You don't say where you are, but in North America it's considered a noxious weed because it seeds itself prolifically. More information here https://en.m.wikipedia.org/wiki/Commelina_communis