GABRIO - Open Pollinated Celeriac Seeds

Start indoors in late winter to mid-spring 10–12 weeks before transplanting outdoors. Sow celeriac seed ⅛ inch deep. Place a seed cloth or burlap over the seeding area to keep the soil moist until plants sprout. Seeds require light and are slow to germinate.  

PLANT OUT: When plants are 3 to 4 inches (7.6-10cm) tall thin them from 6 to 8 inches (15-20cm) apart or transplant them into the garden at that distance. Space rows 24 to 30 inches (61-76cm) apart. Celeriac is often set into the garden in 3- to 4-inch (7.6-10cm) deep trenches, similar to celery. Transplant outdoors when weather is warm and settled. Irrigate to keep soil moist. 

WATER & FEED: Celeriac is shallow-rooted and requires a consistent supply of moisture throughout the season for optimum flavor and yield. Lack of soil moisture will cause celeriac to stop growing. Keep the top few inches of soil moist at all times. Celeriac is a heavy feeder, so you’ll want to fertilize it every three to four weeks with a balanced, 10-10-10 NPK fertilizer. 

For best flavor and longer storage, water plants the day before harvest. Harvest celeriac when the swollen root is 3 to 4 inches (7.6-10cm) across or slightly larger. Cut stems close to the knobby root; use a garden fork to lift the roots. Celeriac will increase with flavor following a light frost but should be harvested before the first hard freeze. Leaves can be used to flavor soups and stews.