Question on Datura plants

My friend sent this email to me, asking if I'd ever heard of Daturas changing each year. I was wondering if any of you have had this happen with your plants?

"Last November my yellow datura plant produced a very pretty double or triple (triple, I think) yellow flower. I have some pics. It was the first time it had ever bloomed, altho it was 2 or 3 years old.

The flower was broken off the first day (wind? birds? critters?) ... so there was no seed pod. The second bud fell off without opening, presumably because the weather was too cold by the time it appeared.

A (single)white datura growing nearby had already finished blooming for the summer, so cross pollination would seem to be ruled out. (?)

This year, in early April, the first two [yellow datura] flowers were singles, not triples like last year's flowers. They were yellow, but very plain, not even as pretty as the ordinary white ones that grow like weeds here. The first flower to bloom faced upward, as daturas do ... but the second flower faced down, like a brug. (Have pics of these as well.) Strange.

I read somewhere that daturas can "revert" (how? to what??) and that's the only thing I can think of that might have happened.

Unless the few freezing nights "nipped" the top and somehow temporarily (?) changed it? It lost all lower leaves, but not the ones on the upper 1/4 of the plant during the winter. Those same upper leaves are still there."

Could be the soil, alkalinity. Most likely it reverted. I could be wrong, but the only daturas that grow here are the wild ones, and I'm not that familiar with the hybrids.
I'm sure someone has better info.
WIB!
SW

Thanks for your imput SW. I'd only heard about plants reverting back to the parent plants.

There's a whole forum devoted to Daturas, you might get some help there too http://davesgarden.com/community/forums/f/datura/all/

Thank you ecrane3. I'll check it out.

ecrane, usually knows where to find the answers to every question. What a valued resource, and all around great person you are!
Hope it helps you duc.
WIB,
SW

Individual plants cannot revert. Revert refers to new plants grown from hybridized seeds. They can be genetically different from parent plants and thus can be considered to "revert" if they display characteristics from their parents.