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When to Plant Celery in Brazoria 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.

Brazoria County, Texas is in USDA Zone 9a. The average last spring frost is February 12 and the first fall frost is December 8, giving you a growing season of approximately 299 days.

At an elevation of 348 feet, Brazoria County receives approximately 71.8 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 102Β°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.

Brazoria County, TX (Zone 9a) Year-round
299 days
Last Spring Frost February 12
299 growing days
First Fall Frost December 8

Brazoria County Soil Profile

Soil Type

Sandy Loam

Soil pH

5.5-6.3

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€” 1.7" 0" ❄️ Dormant
Feb 4.3" 2.5" 1.8" πŸ’§ Light watering
Mar 4.3" 4.3" 0" βœ… Rainfall sufficient
Apr 4.3" 8.4" 0" βœ… Rainfall sufficient
May 4.3" 11.2" 0" βœ… Rainfall sufficient
Jun 4.3" 11.3" 0" βœ… Rainfall sufficient
Jul 4.3" 8" 0" βœ… Rainfall sufficient
Aug 4.3" 8.7" 0" βœ… Rainfall sufficient
Sep 4.3" 6.6" 0" βœ… Rainfall sufficient
Oct 4.3" 5.1" 0" βœ… Rainfall sufficient
Nov 4.3" 2.5" 1.8" πŸ’§ Light watering
Dec 4.3" 1.6" 2.7" 🚿 Regular watering

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

Celery Planting Timeline β€” Brazoria County, TX

Celery Planting Calendar

Activity When Date Range
Start Indoors January 15 Jan 15 – Jan 29
Transplant Outdoors February 12 Feb 12 – Feb 26
Direct Sow January 22 Jan 22 – Feb 12
Harvest May 7 May 7 – Jul 2
Fall Sowing October 13 Oct 13 – Oct 27

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

Month-by-Month Timeline

MonthActivities
January Start Indoors Direct Sow
February Transplant Outdoors Direct Sow
March β€”
April β€”
May Harvest
June Harvest
July Harvest
August β€”
September β€”
October Fall Sowing
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 9a

πŸ“† Growing Season

299 days in Brazoria County

Growing Tips for Brazoria 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 Brazoria County, TX?

Brazoria County is in Zone 9a with an average last frost of February 12. Plan your Celery planting based on this frost date β€” see the calendar above for exact timing.

What planting zone is Brazoria County, TX?

Brazoria County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is February 12 and first fall frost is December 8.

🌱

Plan Your Garden with Confidence

Get our free Garden Planner β€” designed to help Brazoria County gardeners in Zone 9a 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 Brazoria County, TX. Local conditions may vary. Last updated: April 2026.