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When to Plant Celery in Franklin 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.

Franklin County, Texas is in USDA Zone 8a. The average last spring frost is March 18 and the first fall frost is November 11, giving you a growing season of approximately 238 days.

At an elevation of 324 feet, Franklin County receives approximately 60 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 97ยฐF, so Celery may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Celery will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Celery root diseases.

Franklin County, TX (Zone 8a) Long season
238 days
Last Spring Frost March 18
238 growing days
First Fall Frost November 11

Franklin County Soil Profile

Soil Type

Sandy Loam

Soil pH

5.4-6.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (99 days to spare)
Start indoors: Feb 1 Transplant: Mar 8 🍅 Harvest: May 31 – Jul 26
Recommended (50%) ✓ Fits season (98 days to spare)
Start indoors: Feb 11 Transplant: Mar 18 🍅 Harvest: Jun 10 – Aug 5
Safe Start (90%) ✓ Fits season (93 days to spare)
Start indoors: Mar 4 Transplant: Apr 8 🍅 Harvest: Jul 1 – Aug 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 Franklin County

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

Soil pH

Your soil pH (5.4โ€“6.3) is more acidic than Celery prefers (6.0โ€“7.0). Add garden lime to raise pH.

Soil Texture

Sandy soil in Franklin County warms quickly in spring but drains fast. Celery will need more frequent watering and regular compost additions to retain nutrients.

Drainage

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

Organic Matter

Organic matter is moderate (2.0%). 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 238-day season

Sow every 9.1 weeks. Last sowing by Jul 14 to harvest before frost.

For a dedicated fall crop, sow by Sep 02.

Plant Water Budget

Plant needs
1.3″/week
Rainfall provides
1.1″/week
You supply
0.6″/week
Watering frequency 1-2 times/week
Season total 1,337 gal / 100 sq ft
Celery needs ~2,275 GDD — county provides 5,414 GDD Excellent fit

Celery Planting Timeline โ€” Franklin County, TX

Celery Planting Calendar

Activity When Date Range
Start Indoors February 11 Feb 11 โ€“ Feb 25
Transplant Outdoors March 18 Mar 18 โ€“ Apr 1
Direct Sow March 4 Mar 4 โ€“ Mar 25
Fall Sowing September 2 Sep 2 โ€“ Sep 16
Harvest June 10 Jun 10 โ€“ Aug 5

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

1.3"/week ยท 1-2 times/week

๐Ÿ“… Days to Maturity

80โ€“120 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: too_acidic

๐Ÿ—บ๏ธ USDA Zone

Zone 8a

๐Ÿ“† Growing Season

238 days in Franklin County

Growing Tips for Celery in Franklin County

Direct sow Celery outdoors after March 18 in Franklin County when soil has warmed and frost danger has passed.

Sandy soil in Franklin County dries quickly โ€” mulch Celery with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With summer highs reaching 97ยฐF in Franklin County, provide afternoon shade for Celery and water deeply in the morning.

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

Level Up Your Garden

Frequently Asked Questions

When should I plant Celery in Franklin County, TX?

Franklin County is in Zone 8a with an average last frost of March 18. Plan your Celery planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Franklin County, TX?

Franklin County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 18 and first fall frost is November 11.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Franklin 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 Franklin County, TX. Local conditions may vary. Last updated: April 2026.