I've managed to keep Swiss Chard going for a couple of years (per plant) down here without bolting when we have mild winters and when I cut a lot of the leaves off of it. I don't pull the whole thing, I use a few leaves at a time. I've missed it, it's a favorite crop, but last summer is the last good crop I had. What I started in the fall didn't overwinter because we had a week of weather down in the low teens.

SRS