The Sarracenia will winter outside with protection. Is there any way you can bury your pot in the ground? Then you could mulch it with pine needles (at my house, my mulch is 4 layers of burlap). The Sarracenia don't need light in the winter time. I mulch with 4 layers of burlap because: 1. Not a pine needle in sight in the desert and 2. I need something that won't blow away in the 50 - 60 mile an hour winds. The plants can freeze solid although, under my layers of burlap, they don't. The burlap works well because the Sarracenia stems hold it up a little, allowing an airspace of a couple inches above the soil and below the burlap. One of the major winter killers is mold caused by lack of air circulation. Also, Sarracenia need to be in water all winter.
This is the same bog as the photo above but taken last January.
The bigger problem with your pot is that Venus Flytraps are not frost hardy. They require bright light and reduced water during their winter dormancy.
The Butterworts are or are not winter hardy, depending upon where they came from, Mexico or Canada. Do you know what kind you have? Most of the ones we see are tropical.
The Drosera are iffy, depending upon which you have. I have one that has survived outside for 3 years now. It blooms white, not purple and is forked-leaved. I didn't plant it; it must have come with one of the Sarracenia. D. capensis has escaped to the bog but never survived the winter.
That's it in the very forefront of this photo. Its a little hard to see but its blooming and you can see the forked leaves at the base of the Sarracenia its growing with.
I know, I have complicated things even more.
