Surface sow in pots in early spring. Transplant to 8” centers in fertile soil when plants are 3” tall. Prefers cool growing conditions. Keep well watered and cultivated. Harvest as needed. Germination can be slow and erratic.
Collect seeds from 15+ plants for replanting or culinary use in second year. Cut seed stalks when seeds are dry, thresh by hand, dancing, or hitting seed stalk against sides of bucket. Winnow to clean. Isolate from other species (stalk or leaf celery and celeriac) by at least 1/4 mile.