You do not need a large garden to grow celery, but you must have enthusiasm and a taste for this delicious vegetable before committing yourself, there are two kinds, the self-blanching type that is picked green, and the one that needs to be earthed up to blanch the stalks. celery is a cool-season crop and must have cool, moist condition to mature well, Fairly-Hardy, Full-Sun, Deciduous, Needs-Medium-Water.