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When to Plant Celery in Madison 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.

Madison County, Texas is in USDA Zone 8b. The average last spring frost is March 5 and the first fall frost is November 20, giving you a growing season of approximately 260 days.

At an elevation of 122 feet, Madison County receives approximately 57.5 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 91ยฐF, providing good warmth for Celery during the growing season. 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.

Madison County, TX (Zone 8b) Long season
260 days
Last Spring Frost March 5
260 growing days
First Fall Frost November 20

Madison County Soil Profile

Soil Type

Sandy Loam

Soil pH

5.5-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (126 days to spare)
Start indoors: Jan 16 Transplant: Feb 20 🍅 Harvest: May 15 – Jul 10
Recommended (50%) ✓ Fits season (120 days to spare)
Start indoors: Jan 29 Transplant: Mar 5 🍅 Harvest: May 28 – Jul 23
Safe Start (90%) ✓ Fits season (109 days to spare)
Start indoors: Mar 2 Transplant: Apr 6 🍅 Harvest: Jun 29 – Aug 24

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 Madison County

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

Soil pH

Your soil pH (5.5โ€“6.5) overlaps with Celery's range (6.0โ€“7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is low (2.0%). Add 2-3 inches of compost before planting 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 260-day season

Sow every 9.1 weeks. Last sowing by Jul 23 to harvest before frost.

For a dedicated fall crop, sow by Sep 11.

Plant Water Budget

Plant needs
1.3″/week
Rainfall provides
0.9″/week
You supply
0.5″/week
Watering frequency 1-2 times/week
Season total 1,031 gal / 100 sq ft
Drought risk

Water stress score is 6/10 โ€” 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 โ€” 1.4" 0" โ„๏ธ Dormant
Feb โ€” 2.1" 0" โ„๏ธ Dormant
Mar 5.6" 3.2" 2.4" ๐Ÿ’ง Light watering
Apr 5.6" 6.6" 0" โœ… Rainfall sufficient
May 5.6" 9.1" 0" โœ… Rainfall sufficient
Jun 5.6" 9.8" 0" โœ… Rainfall sufficient
Jul 5.6" 6.8" 0" โœ… Rainfall sufficient
Aug 5.6" 6.9" 0" โœ… Rainfall sufficient
Sep 5.6" 4.8" 0.8" ๐Ÿ’ง Light watering
Oct 5.6" 3.5" 2.1" ๐Ÿ’ง Light watering
Nov 5.6" 1.9" 3.7" ๐Ÿšฟ Regular watering
Dec โ€” 1.3" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Madison County). Supplement amounts are based on average rainfall โ€” 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" โ€” every day above 50ยฐF 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 ~1,825 GDD — county provides 4,745 GDD Excellent fit

Celery Planting Timeline โ€” Madison County, TX

Celery Planting Calendar

Activity When Date Range
Start Indoors January 29 Jan 29 โ€“ Feb 12
Transplant Outdoors March 5 Mar 5 โ€“ Mar 19
Direct Sow February 19 Feb 19 โ€“ Mar 12
Harvest May 28 May 28 โ€“ Jul 23
Fall Sowing September 11 Sep 11 โ€“ Sep 25

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

Month-by-Month Timeline

MonthActivities
January Start Indoors
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

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: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 8b

๐Ÿ“† Growing Season

260 days in Madison County

Growing Tips for Celery in Madison County

Direct sow Celery outdoors after March 05 in Madison County when soil has warmed and frost danger has passed.

Sandy soil in Madison 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.

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 Madison County, TX?

Madison County is in Zone 8b with an average last frost of March 5. Plan your Celery planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Madison County, TX?

Madison County, Texas is in USDA Hardiness Zone 8b. The average last spring frost is March 5 and first fall frost is November 20.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Madison County gardeners in Zone 8b 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 Madison County, TX. Local conditions may vary. Last updated: April 2026.