Quick question from a 1st winter gardener: I attempted to grow a few things in Charlotte, NC over the winter that just did not sprout - celery, lettuce, onion, chives, and carrots (although I did get beautiful carrot tops). I have not pulled up any of it yet, and planned to try again in early Spring. Should I dig up what’s grown and start over? Or should I leave it while the weather warms up and see if I get more growth from what’s already planted??