I'm in Tyler and mine get afternoon sun. They are blooming profusely.

full sun or as much sun as you can give them. I have a double yellow that would bloom more if it got more. I have whites that are huge and happy in the heat.

c

Full sun and out of reach of pets and children as they are highly toxic if ingested. Cheryl

You'll probably get hornworms on them. Datura are a part of the deadly nightshade/tomato/potato family. The hornworms eat the plant (don't kill it) in return they polinate the flowers as beautiful hawk moths or hummingbird moths. I grow datura (plain white) as a host plant for the hornworms I don't want on my fancy brugs or tomato plants. I just pick them up and relocate as needed.

Here is a link that might be useful:

We have hummingbird moths but didn't know they were hornworms. I'll never think ugh! when I see one again, or put it in the birdfeeder.

Full sun here, the ones at the airport are coming back so apparently they will tolerate 11' of salt water, or the seeds at least. They are a weed north of us-the common white ones, called jimson weed. Kills livestock.
But they are so pretty and we don't got no cows except in the freezer.
Tally HO!