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When to Plant Celery in Dallas County, TX

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.

Dallas County, Texas is in USDA Zone 8a. The average last spring frost is March 8 and the first fall frost is November 20, giving you a growing season of approximately 257 days.

At an elevation of 67 feet, Dallas County receives approximately 65.7 inches of rainfall annually with predominantly clay soil. Summer highs average 97ยฐF, so Celery may need afternoon shade and extra watering during peak heat. Clay soil retains moisture well for Celery, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Celery root diseases.

Dallas County, TX (Zone 8a) Long season
257 days
Last Spring Frost March 8
257 growing days
First Fall Frost November 20

Dallas County Soil Profile

Soil Type

Clay

Soil pH

6.7-8.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (114 days to spare)
Start indoors: Jan 25 Transplant: Mar 1 🍅 Harvest: May 24 – Jul 19
Recommended (50%) ✓ Fits season (117 days to spare)
Start indoors: Feb 1 Transplant: Mar 8 🍅 Harvest: May 31 – Jul 26
Safe Start (90%) ✓ Fits season (102 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.

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
1.1″/week
You supply
0.4″/week
Watering frequency 1-2 times/week
Season total 975 gal / 100 sq ft
Celery needs ~2,275 GDD — county provides 5,846 GDD Excellent fit

Celery Planting Timeline โ€” Dallas County, TX

Celery Planting Calendar

Activity When Date Range
Start Indoors February 1 Feb 1 โ€“ Feb 15
Transplant Outdoors March 8 Mar 8 โ€“ Mar 22
Direct Sow February 22 Feb 22 โ€“ Mar 15
Fall Sowing September 11 Sep 11 โ€“ Sep 25
Harvest May 31 May 31 โ€“ Jul 26

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

Month-by-Month Timeline

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

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

High โ€” keep soil consistently moist

Days to Maturity

80โ€“120 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 8a

Growing Season

257 days

Growing Tips for Dallas 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

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Frequently Asked Questions

When should I plant Celery in Dallas County, TX?

Dallas County is in Zone 8a with an average last frost of March 8. Plan your Celery planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Dallas County, TX?

Dallas County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 8 and first fall frost is November 20.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Dallas County gardeners in Zone 8a organize planting dates, track what's growing, and never miss a planting window.

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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 Dallas County, TX. Local conditions may vary. Last updated: April 2026.