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When to Plant Celery in St. Francis County, AR

St. Francis County, Arkansas Zone 8a May

Top priorities for St. Francis County, Arkansas gardeners in May

If you only do a handful of things in the garden this May, make it these. They're sequenced around your zone's frost timing.

Avg. last frost March 20
Avg. first frost November 9
Soil temp (4") 68°F
Watering Low
Pest pressure Moderate
Daylight 13.8 hrs
Get ahead of June
  • First harvests: 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.

St. Francis County, Arkansas is in USDA Zone 8a. The average last spring frost is March 20 and the first fall frost is November 9, giving you a growing season of approximately 234 days.

At an elevation of 1,429 feet, St. Francis County receives approximately 51.2 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88°F, providing good warmth for Celery during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Celery root diseases.

St. Francis County, AR (Zone 8a) Long season
234 days
Last Spring Frost March 20
234 growing days
First Fall Frost November 9
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St. Francis County Soil Profile

Soil Type

Silt Loam

Soil pH

5.5-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (94 days to spare)
Start indoors: Feb 5 Transplant: Mar 12 🍅 Harvest: Jun 4 – Jul 30
Recommended (50%) ✓ Fits season (94 days to spare)
Start indoors: Feb 13 Transplant: Mar 20 🍅 Harvest: Jun 12 – Aug 7
Safe Start (90%) ✓ Fits season (93 days to spare)
Start indoors: Mar 5 Transplant: Apr 9 🍅 Harvest: Jul 2 – Aug 27

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 St. Francis County

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

Soil pH

Your soil pH (5.5–6.7) overlaps with Celery's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.9%). 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.

Succession Planting Celery

3
successive plantings in your 234-day season

Sow every 9.1 weeks. Last sowing by Jul 12 to harvest before frost.

For a dedicated fall crop, sow by Aug 31.

Plant Water Budget

Plant needs
1.3″/week
Rainfall provides
0.9″/week
You supply
0.4″/week
Watering frequency 1-2 times/week
Season total 794 gal / 100 sq ft

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 4.2" 0" ❄️ Dormant
Feb 4.2" 0" ❄️ Dormant
Mar 5.6" 5.4" 0.2" 💧 Light watering
Apr 5.6" 3.9" 1.7" 💧 Light watering
May 5.6" 4.3" 1.3" 💧 Light watering
Jun 5.6" 4.1" 1.5" 💧 Light watering
Jul 5.6" 5.2" 0.4" 💧 Light watering
Aug 5.6" 4.5" 1.1" 💧 Light watering
Sep 5.6" 4.1" 1.5" 💧 Light watering
Oct 5.6" 2.8" 2.8" 🚿 Regular watering
Nov 5.6" 4" 1.6" 💧 Light watering
Dec 4.5" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in St. Francis 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 ~1,600 GDD — county provides 3,744 GDD Excellent fit

Celery Planting Timeline — St. Francis County, AR

Celery Planting Calendar

Activity When Date Range
Start Indoors February 13 Feb 13 – Feb 27
Transplant Outdoors March 20 Mar 20 – Apr 3
Direct Sow March 6 Mar 6 – Mar 27
Harvest June 12 Jun 12 – Aug 7
Fall Sowing August 31 Aug 31 – Sep 14

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

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.3"/week · 1-2 times/week

📅 Days to Maturity

80–120 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 8a

📆 Growing Season

234 days in St. Francis County

Growing Tips for Celery in St. Francis County

Direct sow Celery outdoors after March 20 in St. Francis 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 →

Frequently Asked Questions

When should I plant Celery in St. Francis County, AR?

St. Francis County is in Zone 8a with an average last frost of March 20. Plan your Celery planting based on this frost date — see the calendar above for exact timing.

What planting zone is St. Francis County, AR?

St. Francis County, Arkansas is in USDA Hardiness Zone 8a. The average last spring frost is March 20 and first fall frost is November 9.

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Your St. Francis County Garden Planner — Free

A 24-page printable planner built for St. Francis County (Zone 8a). 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 St. Francis County, AR. Local conditions may vary. Last updated: May 2026.

Sources & credits

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