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When to Plant Celery in Mitchell, NE

Celery
Scotts Bluff County, Nebraska Zone 5a June

June to-do list for Scotts Bluff County, Nebraska

We've pulled the most time-sensitive tasks for Scotts Bluff County, Nebraska this June and put them front and centre. Tackle them in order.

Avg. last frost May 13
Avg. first frost September 25
Soil temp (4") 64°F
Watering High
Pest pressure High
Daylight 15 hrs
  1. Begin indoor sowing: celery

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

Before July arrives, get these ready
  • Fall sowing: celery

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Celery is a marshland plant that requires consistent moisture and cool temperatures to produce crisp, flavorful stalks. It is a rewarding but demanding garden crop.

Mitchell, Nebraska is in USDA Zone 5a. The average last spring frost is May 13 and the first fall frost is September 25, giving you a growing season of approximately 135 days.

At an elevation of 1,080 feet, Scotts Bluff County receives approximately 32.2 inches of rainfall annually with predominantly loam soil. Summer highs average 83°F, so choose short-season varieties of Celery to ensure they mature before fall.

Mitchell, NE (Zone 5a) Short season
135 days
Last Spring Frost May 13
135 growing days
First Fall Frost September 25

Mitchell Soil Profile

Soil Type

Loam

Soil pH

6.3-7.5

Drainage

Well Drained

Celery Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Start indoors: Apr 3 Transplant: May 8 🍅 Harvest: Jul 31 – Sep 25
Recommended (50%) ✗ May not fit
Start indoors: Apr 8 Transplant: May 13 🍅 Harvest: Aug 5 – Sep 30
Safe Start (90%) ✗ May not fit
Start indoors: May 4 Transplant: Jun 8 🍅 Harvest: Aug 31 – Oct 26

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 Mitchell

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

Soil pH

Your soil pH (6.3–7.5) overlaps with Celery's range (6.0–7.0), though not a perfect match.

Soil Texture

The loam soil in Scotts Bluff County is excellent for Celery — good drainage, moisture retention, and nutrient holding capacity.

Drainage

Celery is a heavy drinker but your soil drains very quickly. Mulch heavily and consider drip irrigation.

Organic Matter

Organic matter is moderate (3.6%). Annual compost additions will help Celery.

How to Plant Celery

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

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

Celery Water Budget

Plant needs
1.3″/week
Rainfall provides
1.0″/week
You supply
0.8″/week
Watering frequency 2-3 times/week
Season total 992 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Celery

Celery needs approximately 1.3 inches of water per week (5.6" per month). Here's how your county's rainfall compares month by month.

Month Celery Needs Rainfall You Supplement Action
Jan 2.1" 0" ❄️ Dormant
Feb 1.9" 0" ❄️ Dormant
Mar 2.6" 0" ❄️ Dormant
Apr 3" 0" ❄️ Dormant
May 5.6" 4.1" 1.5" 💧 Light watering
Jun 5.6" 2.2" 3.4" 🚿 Regular watering
Jul 5.6" 3.3" 2.3" 💧 Light watering
Aug 5.6" 3.9" 1.7" 💧 Light watering
Sep 5.6" 2.6" 3" 🚿 Regular watering
Oct 2.9" 0" ❄️ Dormant
Nov 2" 0" ❄️ Dormant
Dec 1.7" 0" ❄️ Dormant

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

Celery 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.

Celery needs ~1,225 GDD — county provides 1,653 GDD Excellent fit

Celery Planting Timeline — Mitchell, NE

Celery Planting Calendar

Activity When Date Range
Start Indoors April 8 Apr 8 – Apr 22
Transplant Outdoors May 13 May 13 – May 27
Direct Sow April 29 Apr 29 – May 20
Harvest August 5 Aug 5 – Sep 30
Fall Sowing July 17 Jul 17 – Jul 31

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.3"/week · 2-3 times/week

📅 Days to Maturity

80–120 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 5a

📆 Growing Season

135 days in Scotts Bluff County

Growing Tips for Celery in Mitchell

Direct sow Celery outdoors after May 13 in Scotts Bluff County when soil has warmed and frost danger has passed.

Common pests for Celery 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. Keep soil consistently moist and never let it dry out. Blanch stalks by mounding soil or using collars for milder flavor.

Companion Planting

Good Companions

Avoid Planting Near

  • Carrots
  • Parsnip

Check more plant combinations with our Companion Planting Checker →

🌱

Your Scotts Bluff County Garden Planner — Free

A 22-page printable planner built for Scotts Bluff County (Zone 5a). 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 Scotts Bluff County, NE. Local conditions may vary. Last updated: June 2026.