Ann, right forgot to mention this. You said that you put Brugmansia in pots, (of course so you can move them to the favourite sitting spot at night to enjoy the night fragrance, hee, hee, ;) :)), but they don't bloom as well in pots. Does Brugmansia have deep deep roots, maybe tap roots, that if they come in contact with a hinderance, like the bottom of a pot, they become stunted? Have you ever looked into this? I would be curious. I find alot of large plants that grow in pots just don't do well as the ones in the open ground. No doubt, some kind of root bound issues.
Wonder (I am going to probably bite that bullet and buy some Brugmansia tubers, (corms, whatever, do you know what they are?) and get them going here. I don't know if I can yet grow these by seed. I will grow them in really deep pots, depending on what your answer to my queeries are. Maybe in enormous pots they will be good growers, time will tell that tale. Anyways, sweet dreams about the beauties of the summertime that we know are just around the corner. Have a great and wonderful day, Cindi