We got a double Purple Datura last year and it did amazingly outside -- just left it in the ground and it made flowers and seeds like crazy. To our amazement, we had a volunteer Datura this summer which has managed to flower and make seed in one of the coldest and shortest summers on record (it's already been getting down to 43 degrees at night...) I'll try to grab a seed pod and store it in a paper bag right before the first hard frost to make sure some seeds have time to mature, then when they have, I'll bury it and hope for lots of snow cover again.
However, our purple Datura has morphed into a plain white one. So I guess the purple is just a fancy hybrid? At any rate, no one needs to write back, but here's our experience for what it's worth.
Go with God.
Mother Raphaela
