Hmmm. The weather affected my double yellow and it had pale cream flowers for a while and they are usually deep yellow. Maybe it could use some more sun. You don't have a second plant in with it do you? Sometimes I have had the plain white seeds fall into other plants and grow with them. I would think it would have at least a little purple somewhere on the bloom if its just pale.

At least you had blooms! I had some daturas coming up dble purple. dble yellow-cream color and then they up and died, the ones that did not died got eaten up by an UGLY green worm along with 2 tomatoe plants, then I got some seeds for a dble white datura, they sprouted but rotted so NO Daturas for me so far I am trying to sprout some more seeds, I put them in a tray with potting soil and have them covered with amesh in hope that if they do come up they will not get eaten up by bugs.