Hi Paula, I first read your name as Tubersauras.
It's probably a bit early to pot up your tubers now unless you have a very sunny location to grow them. It doesn't sound like you want to take cuttings (the reason some people expose the crown in the pot), so 6 weeks before planting time is more than adequate.
We used to store in clumps, then in the spring (about March 15) just cut the clumps so they would fit in a 1 gal pot. We'd sprout them in the dining room, then move them to the sunroom/greenhouse as they emerged. Last year I took a chance and planted some out April 15, about a month before you're "supposed to" in zone 6 based on the extended weather outlook. I got lucky last year but have had losses in the past. Our first blooms were in June so it's worth the risk if you have too many.
