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When to Plant Celery in Johnson County, AR

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.

Johnson County, Arkansas is in USDA Zone 7a. The average last spring frost is March 26 and the first fall frost is November 3, giving you a growing season of approximately 222 days.

At an elevation of 1,347 feet, Johnson County receives approximately 49.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 91Β°F, providing good warmth for Celery during the growing season.

Johnson County, AR (Zone 7a) Long season
222 days
Last Spring Frost March 26
222 growing days
First Fall Frost November 3

Johnson County Soil Profile

Soil Type

Silt Loam

Soil pH

5.3-7

Drainage

Well Drained

Monthly Watering Guide for Celery

Celery needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Celery Needs Rainfall You Supplement Action
Jan β€” 3.8" 0" ❄️ Dormant
Feb β€” 3.8" 0" ❄️ Dormant
Mar 4.3" 4.7" 0" βœ… Rainfall sufficient
Apr 4.3" 3.6" 0.7" πŸ’§ Light watering
May 4.3" 4.1" 0.2" πŸ’§ Light watering
Jun 4.3" 5" 0" βœ… Rainfall sufficient
Jul 4.3" 4.6" 0" βœ… Rainfall sufficient
Aug 4.3" 4.3" 0" βœ… Rainfall sufficient
Sep 4.3" 4.1" 0.2" πŸ’§ Light watering
Oct 4.3" 3.7" 0.6" πŸ’§ Light watering
Nov 4.3" 4.2" 0.1" πŸ’§ Light watering
Dec β€” 3.9" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Johnson County). Supplement amounts are based on average rainfall β€” actual needs vary with temperature, soil, and mulching.

Celery Planting Timeline β€” Johnson County, AR

Celery Planting Calendar

Activity When Date Range
Start Indoors February 19 Feb 19 – Mar 5
Transplant Outdoors March 26 Mar 26 – Apr 9
Direct Sow March 12 Mar 12 – Apr 2
Harvest June 18 Jun 18 – Aug 13
Fall Sowing August 25 Aug 25 – Sep 8

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

Month-by-Month Timeline

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

Growing Conditions

β˜€οΈ Sun

Full Sun (6-8+ hours)

πŸ’§ Water

High β€” keep soil consistently moist

πŸ“… Days to Maturity

80–120 days

πŸ§ͺ Soil pH

Needs 6–7 Β· Your soil: N/A

πŸ—ΊοΈ USDA Zone

Zone 7a

πŸ“† Growing Season

222 days in Johnson County

Growing Tips for Johnson County

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 Johnson County, AR?

Johnson County is in Zone 7a with an average last frost of March 26. Plan your Celery planting based on this frost date β€” see the calendar above for exact timing.

What planting zone is Johnson County, AR?

Johnson County, Arkansas is in USDA Hardiness Zone 7a. The average last spring frost is March 26 and first fall frost is November 3.

🌱

Plan Your Garden with Confidence

Get our free Garden Planner β€” designed to help Johnson County gardeners in Zone 7a organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

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