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When to Plant Celery in Martin 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.

Martin County, Texas is in USDA Zone 7b. The average last spring frost is March 25 and the first fall frost is November 12, giving you a growing season of approximately 232 days.

At an elevation of 4,922 feet, Martin County receives approximately 50.2 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 100Β°F, so Celery may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring β€” great for early planting β€” 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.

Martin County, TX (Zone 7b) Long season
232 days
Last Spring Frost March 25
232 growing days
First Fall Frost November 12

Martin County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.2-8.7

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€” 2.9" 0" ❄️ Dormant
Feb β€” 3" 0" ❄️ Dormant
Mar 4.3" 2.4" 1.9" πŸ’§ Light watering
Apr 4.3" 1.9" 2.4" 🚿 Regular watering
May 4.3" 0.9" 3.4" 🚿 Regular watering
Jun 4.3" 1.4" 2.9" 🚿 Regular watering
Jul 4.3" 9.2" 0" βœ… Rainfall sufficient
Aug 4.3" 10.1" 0" βœ… Rainfall sufficient
Sep 4.3" 7" 0" βœ… Rainfall sufficient
Oct 4.3" 4.9" 0" βœ… Rainfall sufficient
Nov 4.3" 2.8" 1.5" πŸ’§ Light watering
Dec β€” 3.7" 0" ❄️ Dormant

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

Celery Planting Timeline β€” Martin County, TX

Celery Planting Calendar

Activity When Date Range
Start Indoors February 18 Feb 18 – Mar 4
Transplant Outdoors March 25 Mar 25 – Apr 8
Direct Sow March 11 Mar 11 – Apr 1
Harvest June 17 Jun 17 – Aug 12
Fall Sowing September 3 Sep 3 – Sep 17

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 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 7b

πŸ“† Growing Season

232 days in Martin County

Growing Tips for Martin 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 Martin County, TX?

Martin County is in Zone 7b with an average last frost of March 25. Plan your Celery planting based on this frost date β€” see the calendar above for exact timing.

What planting zone is Martin County, TX?

Martin County, Texas is in USDA Hardiness Zone 7b. The average last spring frost is March 25 and first fall frost is November 12.

🌱

Plan Your Garden with Confidence

Get our free Garden Planner β€” designed to help Martin County gardeners in Zone 7b 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 Martin County, TX. Local conditions may vary. Last updated: April 2026.