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Seed Planting Info

Celeriac
Apium graveolens - var. rapaceum

 
Seed DepthSoil Temp. for GerminationDays to GerminationSunlight RequirementsPlanting Time
1/4"70 F to 75 F 15 to 20 daysPartial Shade / Full Sun Spring
USDA Hardiness ZoneSeed SpacingRow SpacingSpace After ThinningDays to Harvest
N/A 1"18 - 24" 4 - 6"100 - 150 days
Celeriac Seed Planting Information:

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 soil temperature is above 55 F. Soak ground well before transplanting outdoors. Spring planting should occur as soon as 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.

Soil Requirements:

Requires fertile soil in a well drained location in the garden. Apply much and grass clippings, or straw around base of plant.

Water Requirements:

Water regularly. Keep watered during dry and hot spells.

Fertilizer Requirements:

Use RootBlast, Vegetable Alive, and Slow Release Fertilizer when transplanting outdoors. Apply Miracle Gro twice a month.

Harvest Tips:

Dig out roots when roots are several inches in diameter.