We planted celery and it's getting pretty tall and has yellow blooms, but we don't know where they should be picked off or just left alone. We don't know what it is supposed to look like and when is it ready.
Celery Plant Has Yellow Blooms, Do We Pick Them Off
Certified GKH Gardening Expert
Your celery has bolted. Harvest celery as soon as it's large enough to use. Either cut off individual stems as they develop color or pull the entire plant and cut off the roots. Celery should be harvested when the petioles (stalks) from the soil line to the first node are at least 6 inches long. These articles will help: https://www.gardeningknowhow.com/edible/vegetables/celery/tips-on-how-to-grow-celery.htm