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When to Plant Celeriac in Sheridan County, KS

Sheridan County, Kansas Zone 6a May

Your May gardening checklist

Your garden in Sheridan County, Kansas is working on a schedule, even when you're not. Here's where you should be this May.

Avg. last frost April 20
Avg. first frost October 16
Soil temp (4") 60°F
Watering Moderate
Pest pressure Low
Daylight 14.2 hrs
  1. Get celeriac seeds going inside

    Bottom-water once the first true leaves appear — it keeps stems dry and knocks back damping-off.

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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.

Sheridan County, Kansas is in USDA Zone 6a. The average last spring frost is April 20 and the first fall frost is October 16, giving you a growing season of approximately 179 days.

At an elevation of 731 feet, Sheridan County receives approximately 27.3 inches of rainfall annually with predominantly loam soil. Summer highs average 86°F, providing good warmth for Celeriac during the growing season.

Sheridan County, KS (Zone 6a) Moderate season
179 days
Last Spring Frost April 20
179 growing days
First Fall Frost October 16

Sheridan County Soil Profile

Soil Type

Loam

Soil pH

6.5-7.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (37 days to spare)
Start indoors: Mar 12 Transplant: Apr 16 🍅 Harvest: Jul 30 – Sep 3
Recommended (50%) ✓ Fits season (39 days to spare)
Start indoors: Mar 16 Transplant: Apr 20 🍅 Harvest: Aug 3 – Sep 7
Safe Start (90%) ✓ Fits season (36 days to spare)
Start indoors: Mar 31 Transplant: May 5 🍅 Harvest: Aug 18 – Sep 22

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 Sheridan County

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

Soil pH

Your soil pH (6.5–7.5) overlaps with Celeriac's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (3.3%). Annual compost additions will help Celeriac.

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.

Plant Water Budget

Plant needs
0.9″/week
Rainfall provides
0.6″/week
You supply
0.3″/week
Watering frequency 1-2 times/week
Season total 496 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 1.9" 0" ❄️ Dormant
Feb 1.7" 0" ❄️ Dormant
Mar 2.3" 0" ❄️ Dormant
Apr 3.9" 2.9" 1" 💧 Light watering
May 3.9" 3.6" 0.3" 💧 Light watering
Jun 3.9" 1.8" 2.1" 🚿 Regular watering
Jul 3.9" 2.7" 1.2" 💧 Light watering
Aug 3.9" 2.8" 1.1" 💧 Light watering
Sep 3.9" 2.1" 1.8" 💧 Light watering
Oct 3.9" 2.1" 1.8" 💧 Light watering
Nov 2" 0" ❄️ Dormant
Dec 1.5" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Sheridan 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 ~1,595 GDD — county provides 2,595 GDD Excellent fit

Celeriac Planting Timeline — Sheridan County, KS

Celeriac Planting Calendar

Activity When Date Range
Start Indoors March 16 Mar 16 – Mar 30
Transplant Outdoors April 20 Apr 20 – May 4
Direct Sow April 6 Apr 6 – Apr 27
Harvest August 3 Aug 3 – Sep 7
Fall Sowing August 7 Aug 7 – Aug 21

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.9"/week · 1-2 times/week

📅 Days to Maturity

100–120 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 6a

📆 Growing Season

179 days in Sheridan County

Growing Tips for Celeriac in Sheridan County

Direct sow Celeriac outdoors after April 20 in Sheridan 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 Sheridan County, KS?

Sheridan County is in Zone 6a with an average last frost of April 20. Plan your Celeriac planting based on this frost date — see the calendar above for exact timing.

What planting zone is Sheridan County, KS?

Sheridan County, Kansas is in USDA Hardiness Zone 6a. The average last spring frost is April 20 and first fall frost is October 16.

🌱

Your Sheridan County Garden Planner — Free

A 24-page printable planner built for Sheridan 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 Sheridan County, KS. Local conditions may vary. Last updated: May 2026.

Sources & credits

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