by Connie Oswald Stofko Back in March I told you how to start a new celery plant from the celery stump. In September I harvested some of the stalks, but then I left the plant outside to see what it would do. We had a long and mild autumn, and through most of November, the celery plant looked pretty much the same way it did in September– see photo at right. Then we got that cold snap with temperatures in…