Survive? Maybe. Thrive? nuh, uh! Teresa, my brugs bloom once a month from about March through October here and keep going year 'round if the weather stays warm. They are blooming machines once you get them started. (and keep them fed and watered) Warmth and sun are what they need to get started, and then they'll make it totally worthwhile to pamper those tropical divas in your zone. If you make the plant struggle to get going, will it be worth your while? A couple of winters ago we had cold weather that caused my brugs to stop blooming. It took a couple of months to get them blooming again.
I'd say you will be way more likely get good bloom next summer from a plant that overwintered indoors, and kept on growing. Even if you cut it back to bring in a more reasonable sized plant, it will jump ahead and get around to blooming much sooner once the weather warms up than if it has to come back from the ground up, in cold ground.
The idea of planting against a sunny south facing wall is absolutely great, and will extend your brug blooming season into the fall somewhat, too. The ground will warm up there sooner in spring, and the wall will retain heat when the nights start to cool off. Warmth is key with brugs. Plus water and feeding while they're growing of course.
I do root cuttings in water, but pot them up in potting soil as soon as the roots are an inch or so long. Usually only takes a week or two in warm weather. They do great.
