Diamant - standard celeriac variety.
Plant on 3/28 in open 200s
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.
Transplant into 38s when plants have first true leaves, after about three of four weeks, around 4/23.
Transplant outdoors 6/13, with three rows per bed, 1 plant per foot.
Generally maintenance free beyond standard cultivation and watering.
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.
Problems with pests have been minimal.
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.
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.
Sold individually at $0.75.