I took about 60 cuttings from my tubers in March and some of them are doing so beautifully that I've had to repot them twice, and even pinched out the center already (after the 4th set of leaves).

It's been a cold Spring here in 6b in the Northeast. I don't plan to plant them til at least May 15th. My plan was to fertilize them once (soon) with a weak dilution of fish emulsion fertilizer, and then start hardening them off around May 1st (few hours outside for 2 weeks).

Any other care instructions? These plants are going to be quite large before I get them out! I suppose I started the cuttings too early, but there's just no way to predict New England Springs!