Biennial vegetable
Celeriac plant profile
Apium graveolens var. rapaceum
A biennial vegetable for full sun.
Last updated .
When to plant
When to plant Celeriac
Start seeds indoors
12 weeks before your last spring frost to 10 weeks before your last spring frost
Transplant outdoors
2 weeks before your last spring frost
Growing conditions
- Sun
- Full sun
- Planting depth
- 0.25 in
- Soil pH
- 5.8 to 7
- Lifecycle
- Biennial
- Spacing
- 6 in apart, rows 18 in
- Days to maturity
- 100 to 130 days (from sowing)
Evidence trail
Evidence behind this profile
Original extension and institutional publications behind the planting, care, and safety facts on this page.
- Celeriac, Growing Guide
Cornell University, Home Gardening (Vegetable Growing Guides). Supports indoor seed-starting timing (direct), outdoor transplant timing (direct), and days to maturity (direct). Checked 2026-06-18.
- Celeriac (Home Gardening Series, FSA6080)
University of Arkansas System Division of Agriculture, Cooperative Extension Service. Supports days to maturity (direct). Checked 2026-06-18.