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When to plant Celeriac in Wallace County County,

Wallace County County's spring Celeriac window runs April 17 through May 8. time plantings around the expected last-frost window for best survival. A second sowing from July 31 to August 14 extends the harvest into fall.

When to Plant Celeriac in Wallace County, KS

Wallace County, Kansas Zone 6a June

Top priorities for Wallace County, Kansas gardeners in June

Here's what deserves your attention in Wallace County, Kansas this month. Everything below is tailored to Zone 6a and timed around your local frost dates.

Avg. last frost May 1
Avg. first frost October 9
Soil temp (4") 71°F
Watering High
Pest pressure High
Daylight 14.7 hrs
  1. Fire up the seed-starting tray: celeriac

    Give them 6–8 weeks indoors before the last frost and you'll transplant into warm soil with seedlings that are already leaping.

A few tasks this June that'll pay off in July
  • Fall sowing: celeriac

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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.

Wallace County, Kansas is in USDA Zone 6a. The average last spring frost is May 1 and the first fall frost is October 9, giving you a growing season of approximately 161 days.

At an elevation of 1,023 feet, Wallace County receives approximately 33.9 inches of rainfall annually with predominantly loam soil. Summer highs average 83°F, so choose short-season varieties of Celeriac to ensure they mature before fall.

Wallace County, KS (Zone 6a) Moderate season
161 days
Last Spring Frost May 1
161 growing days
First Fall Frost October 9

Wallace County Soil Profile

Soil Type

Loam

Soil pH

6.7-7.2

Drainage

Well Drained

Celeriac Planting Risk Windows

Early Start (70% safe) ✓ Fits season (22 days to spare)
Start indoors: Mar 22 Transplant: Apr 26 🍅 Harvest: Aug 9 – Sep 13
Recommended (50%) ✓ Fits season (21 days to spare)
Start indoors: Mar 27 Transplant: May 1 🍅 Harvest: Aug 14 – Sep 18
Safe Start (90%) ✓ Fits season (22 days to spare)
Start indoors: Apr 9 Transplant: May 14 🍅 Harvest: Aug 27 – Oct 1

Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.

Soil Compatibility in Wallace County

How your county's soil matches Celeriac's growing requirements.

Soil pH

Your soil pH (6.7–7.2) overlaps with Celeriac's range (6.0–7.0), though not a perfect match.

Soil Texture

The loam soil in Wallace County is excellent for Celeriac — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is excellent (4.4%) — Celeriac will thrive.

How to Plant Celeriac

1"
Planting Depth
15"
Between Plants
24"
Between Rows

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Celeriac Water Budget

Plant needs
0.9″/week
Rainfall provides
0.9″/week
You supply
0.0″/week
Watering frequency Only during dry spells
Season total 27 gal / 100 sq ft
Drought risk

Water stress score is 8/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Celeriac

Celeriac needs approximately 0.9 inches of water per week (3.9" per month). Here's how your county's rainfall compares month by month.

Month Celeriac Needs Rainfall You Supplement Action
Jan 2.6" 0" ❄️ Dormant
Feb 2.1" 0" ❄️ Dormant
Mar 2.9" 0" ❄️ Dormant
Apr 3.8" 0" ❄️ Dormant
May 3.9" 4.4" 0" ✅ Rainfall sufficient
Jun 3.9" 2.5" 1.4" 💧 Light watering
Jul 3.9" 2.5" 1.4" 💧 Light watering
Aug 3.9" 3.1" 0.8" 💧 Light watering
Sep 3.9" 2.7" 1.2" 💧 Light watering
Oct 3.9" 2.8" 1.1" 💧 Light watering
Nov 2.5" 0" ❄️ Dormant
Dec 1.9" 0" ❄️ Dormant

Water needs are for active growing months only (May–Oct in Wallace County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Celeriac Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Celeriac needs ~1,348 GDD — county provides 1,972 GDD Excellent fit

Celeriac Planting Timeline — Wallace County, KS

Celeriac Planting Calendar

Activity When Date Range
Start Indoors March 27 Mar 27 – Apr 10
Transplant Outdoors May 1 May 1 – May 15
Direct Sow April 17 Apr 17 – May 8
Harvest August 14 Aug 14 – Sep 18
Fall Sowing July 31 Jul 31 – Aug 14

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 Fall Sowing
August Fall Sowing Harvest
September Harvest
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.9"/week · Only during dry spells

📅 Days to Maturity

100–120 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 6a

📆 Growing Season

161 days in Wallace County

Growing Tips for Celeriac in Wallace County

Direct sow Celeriac outdoors after May 01 in Wallace County when soil has warmed and frost danger has passed.

Common pests for Celeriac in this region include carrot rust fly and parsleyworm. Use row covers early in the season and inspect plants weekly.

General growing tips

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 Wallace County, KS?

Wallace County is in Zone 6a with an average last frost of May 1. Plan your Celeriac planting based on this frost date — see the calendar above for exact timing.

What planting zone is Wallace County, KS?

Wallace County, Kansas is in USDA Hardiness Zone 6a. The average last spring frost is May 1 and first fall frost is October 9.

When should I plant Celeriac in Wallace County, ?

In Wallace County, , plant Celeriac after the last frost (around May 1) and before the first frost (around October 9). Best results when soil holds above 50°F.

What growing zone is Wallace County, for Celeriac?

Wallace County sits in USDA Zone 6a. Celeriac grows reliably in zones 3a through 9b, so it's a good fit here.

Can Celeriac grow in Wallace County's climate?

Yes — Celeriac grows well in Wallace County's temperate climate. Wallace County averages a 161-day frost-free season, with last frost around May 1 and first frost around October 9.

🌱

Your Wallace County Garden Planner — Free

A 22-page printable planner built for Wallace 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.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Wallace County, KS. 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.