Staudensellerie - root grows after
When the celery stalks are used up, you can place the roots in a glass of water. Likewise the rootlets of Roman lettuce. A bit should stick out of the water. So do not cut very close to the root.
With a little patience - a lot of patience, a few weeks - you can see a new plant grow from the roots and reap for the second time. That's fun! The water must be renewed regularly, otherwise the roots rot. A copper coin also helps to keep the water fresh.
