Plant: Celeriac
Family: Umbelliferae
Seed Varieties Dates to Maturity:
Diamant - standard celeriac variety.
Indoor Start Date and Cell Size:
Plant on 3/28 in open 200s
Planting Tips:
It is critical to keep on top of watering in the greenhouse. If they dry out for even a few hours, the older leaves will die and growth will be tremendously set back.
Greenhouse Transplant Date and Cell Size:
Transplant into 38s when plants have first true leaves, after about three of four weeks, around 4/23.
Outdoor Transplant Date and Bed Specifications:
Transplant outdoors 6/13, with three rows per bed, 1 plant per foot.
Plant Needs:
Generally maintenance free beyond standard cultivation and watering.
Cultivation Techniques:
Use large cultivators; stirrup and collinear hoes work well early on, as plants grow (slowly) they will shade out weeds. Cultivation will need to continue all summer.
Pests and Pest Control:
Problems with pests have been minimal.
Harvest Techniques:
Celeriac can be harvested as soon as the root reaches the size of a baseball, and should conclude before the first hard frost. Pull up the entire plant and with a harvest knife, remove the stray roots around the knotted root-ball. For market sale, leave the stalks intact, but for bulk sale remove those as well.
Storage:
For brief storage, wash all the dirt off and keep in a cool place. For longer storage do not wash celeriac; simply brush the dirt off, thoroughly dry it and store in a cool dry place.
Sales:
Sold individually at $0.75.