Light is good, because more than temperature it's how plants know what season it is. Cut the lights to 10 hours while keeping the plants dormant, and try to keep them away from extraneous light from windows while the lights are off. Sarracenia purpurea purpurea can certainly survive your winters if it's in the ground and mulched. Other Sarracenia aren't as hardy.
Agree, although I wonder if they actually need the mulching to be outside. There are enough wild ones somewhere nearby where I live to have pitcher plant moths, and no one's covering them.
That would be more informative if there was a location or winter minimum temperature in there
That's quite the same as Uppsala Sweden! Winter is mostly around -5 to -10, but usually we get one to three weeks of chilly -25!
And they do survive in that climate? I will have to think about planting it outside this summer!
Are you guys using the same temperature scale?
It's been in our food seller know for a couple of days. Should I use 10 hour light or should I have less?