To the right are the lettuce plants that have been growing throughout this blog. Here they are interspersed with full grown heads. Lettuce is a good plant to keep growing at varied stages - that way you'll always have enough for a salad, whether you want full grown leaves or a spring mix that you make by harvesting one or two small leaves from many plants.
We've also put in cabbages, both green and purple.
Our celery is doing really well. The students planted these last spring. They've grown beautifully if a little slowly! We harvest the celery by the stalk and sometimes by the whole plant.