Celeriac

Vegetable · cool season · also called celery root

Knobby celeriac roots with leafy tops
Photo: Fumikas Sagisavas, Wikimedia Commons (CC0)

When to plant

  • Start seeds indoors about 10 weeks before planting out.
  • Plant outdoors about 1 week after your average last spring frost.
  • Ready to harvest about 110 days after planting out.

Grown for its knobby root. Needs steady moisture all season.

Frost dates depend on where you live. Enter your ZIP code to get exact dates.

Growing basics

Sun
Part sun (4–6 hours)
Spacing
12 in
Soil temperature
At least 50°F
Time to harvest
About 110 days
Containers
At least 5 gallons
Plant family
Carrot family (umbellifers)
Harvest per plant
About 1 lb
Seeds keep
About 5 years

Companions

Keep apart: Horseradish. Horseradish spreads aggressively. Give it its own spot.

Keep apart: Mint. Mint spreads aggressively into neighbors. Keep it in a pot.

Keep apart: Fennel (bulb). Fennel slows the growth of most garden plants. Grow it on its own.

Keep apart: Sunchoke (Jerusalem artichoke). Sunchokes spread aggressively and shade neighbors.

Grow it well

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