Aker

If they are in the ground there is about an 80-90% chance they will come back from the roots next spring. I have some that are going on 2 1/2 yrs old. They will die back in the winter, if you put them in a greenhouse you may get blooms year round. I had blooms in jan this year.
They won't take up much space once they die back. the ones that haven't bloomed may just be the first to flower next spring.
PA

hmm.zone 7 tho..I dont know..its iffy..I am zone 7 and mine didnt come back.
You still have time Aker, till first frost to get blooms.
Are they in pots or in the ground?

Hi, all mine are in pots. None of mine have ever survived the winter outside in zone 7. Tomorrow I will take photos of the 2 daturas and see if anyone can id them. They are very slow growing and only about 16-18" tall. Compared to the 2 Evening Fragrance which grew like weeds and have been blooming like crazy!

aker

I'm also in zone 7 and have never had a datura come back from the roots though I have had some varieties that will reseed but never any of the metels. I just start them every year from seed.

Since they are in pots, you can try to bring them in and keep them by a sunny window. I did that last year with my triple yellow. It bloomed for me, and was doing fine by the window. After she bloomed, I put her in the basement to go dormant, but it didnt work, she slowly pooped out on me. I know I didnt force dormancy correctly. I was hoping she would come back from the roots when I put her out in the spring, but she didnt. It's easier to start them from seed late winter early spring and then bring them out when weather permits.

I wintered a potted Black Currant Swirl over by mistake. lol It ended up stuck in the unheated GH with the dormant brugs. The main stem never completely died back and new growth started in the spring. I guess if you have an especially nice dat that you want to keep it might be worth wintering over but they are usually easy to start from seed so I don't bother.

I don't think you can have Datura go into dormancy and come back the same as you can Brugs. They have a totally different root system and no means with which to 'store' energy I don't think. However, Datura were never my specialty and I could be wrong about their inability.

Hi again

One of them is showing some very tiny buds :-) So, maybe it will bloom before the frost and then I will know if it's worthwhile keeping. If I bring it in for the winter I will keep it under grow-lights.

I'm hoping it will be a metel type. But it doesn't have any purple on the stems so I'm guessing it might be either a white or yellow flower?

Aker