Celeriac is grown for its root, ready to pull about 110 days after sowing. It's hardy across USDA zones 3 through 11 and grows just as well in a container as in the ground. Its flowers are a moderate draw for honeybees and native bees, even though the root is the prize. As a member of the carrot family, give it a fresh bed each year — away from where its relatives just grew — so the soil-borne pests and diseases of the family never get a foothold.
Zones
3-11
pH Range
5.5-7.5
Sun
Part Sun
Days to Maturity
110
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What Celeriac is
Celeriac reaches around a foot and a half at maturity. It's also well suited to containers.
How to grow Celeriac
Celeriac grows in USDA zones 3 through 11 and is ready to harvest about 110 days after planting. Celeriac does best in part sun — at least 4 hours of direct sun a day — and soil from pH 5.5 to 7.5, on evenly moist to well-drained ground. It needs around 1,700 growing degree days to mature and a growing season of at least 40 frost-free days, which is why climate matters as much as soil.
USDA Zones
3-11
USDA PHZM 2023
Soil pH
5.5 - 7.5
USDA PLANTS Database
Sun
Part Sun
plant_species_v5.csv
Drainage
poorly (saturated >50% of year), well (dry spells)
plant_species_v5.csv
Frost Tolerance
41°F
plant_species_v5.csv
Days to Maturity
110 days
Celeriac; from transplant. Same start cycle as celery; harvest single window.
Cornell; UMass-Veg
GDD Required
1700+
plant_species_v5.csv
Mature Height
1.5 ft
plant_species_v5.csv
Frost-Free Days
40+
plant_species_v5.csv
Sow directly
Sow celeriac seed straight into the bed — root crops germinate fast and resent transplanting. Give them part sun.
Match the soil
Celeriac prefers pH 5.5 to 7.5 (USDA PLANTS Database). A quick soil test from your local Extension lab tells you whether to add lime or sulfur to land in band.
Water steadily
Keep the root zone evenly moist through establishment. A 2–3 inch mulch layer holds moisture without waterlogging.
Harvest at maturity
Celeriac is ready about 110 days after sowing (Cornell; UMass-Veg). Pull while roots are young and tender — sweeter than oversized ones.
Good to know
Good news for pet owners — celeriac isn't known to be toxic to dogs or cats. (Source: ASPCA.)
Celeriac offers moderate value to bees and other pollinators. (Source: Xerces Society, Pollinator Partnership.)
Where Celeriac thrives
On hardiness alone, celeriac grows across most of the country — its range (USDA zones 3 through 11) is unusually wide. Zone is only the starting point, though: the soil pH, drainage, and frost dates on your specific land decide how well it actually does.
Zones 3–11·Where Celeriac growsOpen map →
On USDA hardiness-zone overlap, Celeriac can grow in these states:
See if Celeriac will thrive on your land
Zone averages are a start. Your exact soil pH, drainage, sun exposure, and frost dates shape whether celeriac actually takes — we score it against the real conditions at your address.
Three things about your exact spot that zone averages miss:
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Frequently Asked Questions
Can I grow Celeriac in my zone?
Celeriac grows in USDA hardiness zones 3 through 11 (USDA PHZM 2023). Zone is one factor — soil pH, drainage, and frost dates on your specific parcel also shape whether it takes.
How long does Celeriac take to grow?
Celeriac is ready to harvest about 110 days after planting (Cornell; UMass-Veg). Your local frost dates and soil temperature move that window earlier or later.
When should you plant Celeriac?
Most growers plant celeriac after the last spring frost, once the soil has warmed, leaving enough of the season for its 40-day frost-free need. Your local frost dates set the exact window — a Growable Ground report reads them for your address.
How much sun does Celeriac need?
Celeriac does well in partial sun — around 4 hours of direct sun, and it takes some afternoon shade in stride. That flexibility makes it a good match for a bed the house or a nearby tree shades for part of the day. A Growable Ground report maps how the sun actually falls on your land, hour by hour, so you can set it where the light lines up.
What soil does Celeriac need?
Celeriac prefers soil pH 5.5 to 7.5, on evenly moist to well-drained ground (USDA PLANTS Database). Your report scores your parcel's actual soil against that using USDA SSURGO data.
Does Celeriac attract pollinators?
Yes — celeriac's flowers are a solid nectar source for honeybees and native bees (Xerces Society, Pollinator Partnership).
Is Celeriac safe for pets?
Celeriac is not known to be toxic to dogs or cats based on available data (ASPCA). Always supervise pets around new plantings.