Giant Prague Celeriac Seeds

Celeriac Apium graveolens - var. rapaceum

Celeriac needs a long, cool growing period and will not grow well where temperatures average above 75°F or where temperatures drop below 45 F. Plant your seeds indoors, between February and April, before setting in the garden. Harden off before planting in the garden. Transplant outdoors when the soil temperature is above 55°F. Soak the ground well before transplanting outdoors. Spring planting should occur as soon as the soil can be worked. Keep plants well watered to avoid tough roots. You can begin harvesting the roots between September and spring when 2" thick. Cover plants with mulch when temperatures fall below freezing. Plants can grow 12" tall.