I have tried to over winter our in the lower heated greenhouse but mites get them first. I have also put them in the tropical higher temp greenhouse but again they attract the mites. It is really best to get seeds and start them about mid February for the PNW. Hope this helps.

Won't really do much good, since they are annuals, and only short lived perennials here in the subtropics. Hope you saved seeds.

I have over-wintered successfully 2 Datura Metel Purple Swirl and a triple yellow. I kept them above 60 and although they lost most of the leafs the few remaining were constantly covered with aphids. I sprayed and washed them and they made it. I'm not sure if I want to repeat it this year. I did not have much success this year with the seeds, so I'm still deciding. I will try something new if I keep them for another year - Systemic Pesticide, which worked on all my other plants that were plagued with pests over the winter.
Good luck, whatever you decide.
AncaG

Hi everyone,
thank you all for the useful information...I'm not sure what I'm going to do yet, although I'm leaning toward over wintering them in the house. There is a space problem, but maybe I'll try that.
gesjenn

AncaG, could you please tell me how the saved purple datura performed in their second year? I am interested if they did better or the same, if they grew more maybe or made more flowers, any difference?
Thank you.

Valentina

Starting new plants from seed is the best bet as you will get more blooms than if you successfully over winter your plant. I know that my Datura metel varieties get rather tall and I can't see them putting out vigorous new growth a second season.

Datura inoxia is often cultivated from rootstock and that is how I got my Datura Missouri Marble this past spring.