I have never had the need to bring developing seed pods inside to finish. Although, many times it's come close. I think it is my "tough luck" care that contributes, but then, I don't do a lot of crossing with trumpets. This is the first year I had good looking pods on Sarabande (an orinetpet) and those seed pods opened surprisingly early, relatively speaking, this year. I thought I would need to bring L. auratum seed pods in, but in the end, pods were soft enough to leave them out. I cut the pods off a two weeks ago, and in a matter of days they began to crack. (Initially, some seeds brown and some seeds white, by the way.)