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When to Plant Celeriac in Lawrence County, PA

Celeriac is a celery relative grown for its knobby, flavorful root rather than its stalks. It has a rich celery flavor and is excellent roasted, mashed, or in soups.

Lawrence County, Pennsylvania is in USDA Zone 6a. The average last spring frost is May 4 and the first fall frost is October 18, giving you a growing season of approximately 167 days.

At an elevation of 441 feet, Lawrence County receives approximately 43.3 inches of rainfall annually with predominantly silt loam soil. Summer highs average 86°F, providing good warmth for Celeriac during the growing season.

Lawrence County, PA (Zone 6a) Moderate season
167 days
Last Spring Frost May 4
167 growing days
First Fall Frost October 18

Lawrence County Soil Profile

Soil Type

Silt Loam

Soil pH

6.0-7.0

Drainage

Well Drained

Celeriac Planting Timeline — Lawrence County, PA

Celeriac Planting Calendar

Activity When Date Range
Start Indoors March 30 Mar 30 – Apr 13
Transplant Outdoors May 4 May 4 – May 18
Direct Sow April 20 Apr 20 – May 11
Harvest August 17 Aug 17 – Sep 21
Fall Sowing August 9 Aug 9 – Aug 23

Plant 1" deep · 15" apart · Rows 24" apart

Month-by-Month Timeline

MonthActivities
January
February
March Start Indoors
April Start Indoors Direct Sow
May Transplant Outdoors Direct Sow
June
July
August Fall Sowing Harvest
September Harvest
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

High — keep soil consistently moist

📅 Days to Maturity

100–120 days

🧪 Soil pH

Needs 6–7 · Your soil: N/A

🗺️ USDA Zone

Zone 6a

📆 Growing Season

167 days in Lawrence County

Growing Tips for Lawrence County

Start seeds indoors 10-12 weeks before last frost. Remove side roots as they develop to encourage a single large bulb. Harvest after a light frost for best flavor.

Companion Planting

Good Companions

Avoid Planting Near

  • Carrots
  • Parsnip

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Celeriac in Lawrence County, PA?

Lawrence County is in Zone 6a with an average last frost of May 4. Plan your Celeriac planting based on this frost date — see the calendar above for exact timing.

What planting zone is Lawrence County, PA?

Lawrence County, Pennsylvania is in USDA Hardiness Zone 6a. The average last spring frost is May 4 and first fall frost is October 18.

🌱

Your Lawrence County Garden Planner — Free

A 22-page printable planner built for Lawrence County (Zone 6a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

Instant PDF download. No spam, unsubscribe any time.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Lawrence County, PA. Local conditions may vary. Last updated: June 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.