They freeze to the ground and come back from the roots in zone8 and up (if it freezes) but if you are currently in zone 6b they would die so you would have to store them dormant in the greenhouse or keep them growing during the winter. Depending on the variety, they bloom sporadically during the year or mainly in the fall.
Some varieties really enjoy the spring and the fall when the nights are cooler than the days and it triggers lots of blooms on them so that's when you typically get those large flushes. They love lots of fertilizer.

Here is a video I made a few years ago from some of the blooms in my yard. I really need to make some new videos lol since I have way more brugs and lots of my own hybrids (crosses that I made) now.

Here is a link that might be useful: Brugmansia 2009

Spectacular! I've never seen so many variations in color and flower form. A high def video camera would make them look great. What part of Florida do you live in? Do you grow them for selling, or just for pleasure?

I do have one in a pot of course here in zone 6. I keep it in an unheated sun room that may get down to 50 some nights. It blooms when I put it outdoors for the warm months April - November. I do wish the leaves and new stems were more "lush" because sometimes it almost seems like a stick with a few small leaves and way too many flowers for the foliage. But it lives on every year so I guess it's OK.

Hi Thank you. Yes I have a better camera now and it does help. I think those old ones were taken with a 3.1 megapix kodak point and shoot type so not so great.

It sounds like you are doing the right thing with your brugmansia. 50 degrees is fine for them. Mine usually do okay even around 34F at night as long as no frost actually gets on them. Once it freezes hard then they can turn to mush.
I move mine into the greenhouse here if I want to keep them growing throughout the winter or if they have seedpods on them that I want to mature because they usually get them most pods in the fall. I am not a salesperson. I just grow them for a hobby :)
You could try putting your brugs in a little more afternoon shade when it is outside for the spring/summer etc.(try sunny morning and dappled afternoon shade) and that might help improve the leaves. Brugs normally have nice big leaves and loose a lot of moisture from them so some extra afternoon shade sometimes helps. They also need lots of fertilizer- way more than normal plants do. In their natural habitat, they often grow on human refuge piles or other areas where debris and natural compost seem to pile up. Just make sure they are well watered when fertilizing.

Thanks, I will try some PM shade and more food and water! I did add some mulch to the pot halfway through the last growing season outside, and it started to help a little. I'd grow tons of them if I had room for them in winter, but I don't. And it's way too cold here in winter to even think about some wild protection scheme.

{{gwi:5901}}

One thing you could also try is to drill holes in the sides of your pot and sink the pot into the ground. That way the roots can grow out of the pot and the plant should get very large. Yet you can dig the pot up and root prune it before putting it away in the winter.

I have a rooted cutting that I can try with that method. It's just about ready to be potted, and by the time the weather warms up here it will be plenty big enough to try that.
Thanks!

{{gwi:5901}}