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When to Plant Chard in San Augustine County, TX

Swiss chard is a colorful, heat-tolerant green with large crinkled leaves and vibrant stalks in red, yellow, and white. Both the leaves and stems are edible and nutritious.

San Augustine County, Texas is in USDA Zone 8b. The average last spring frost is March 5 and the first fall frost is November 16, giving you a growing season of approximately 256 days.

At an elevation of 146 feet, San Augustine County receives approximately 62.7 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 96Β°F, so Chard may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring β€” great for early planting β€” but Chard will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Chard root diseases.

San Augustine County, TX (Zone 8b) Long season
256 days
Last Spring Frost March 5
256 growing days
First Fall Frost November 16

San Augustine County Soil Profile

Soil Type

Sandy Loam

Soil pH

5.4-6.6

Drainage

Well Drained

Monthly Watering Guide for Chard

Chard needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Chard Needs Rainfall You Supplement Action
Jan β€” 1.5" 0" ❄️ Dormant
Feb β€” 1.9" 0" ❄️ Dormant
Mar 4.3" 3.6" 0.7" πŸ’§ Light watering
Apr 4.3" 6.2" 0" βœ… Rainfall sufficient
May 4.3" 8.2" 0" βœ… Rainfall sufficient
Jun 4.3" 10.7" 0" βœ… Rainfall sufficient
Jul 4.3" 8.7" 0" βœ… Rainfall sufficient
Aug 4.3" 8.2" 0" βœ… Rainfall sufficient
Sep 4.3" 5.8" 0" βœ… Rainfall sufficient
Oct 4.3" 4.2" 0.1" πŸ’§ Light watering
Nov 4.3" 2.3" 2" πŸ’§ Light watering
Dec β€” 1.5" 0" ❄️ Dormant

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

Chard Planting Timeline β€” San Augustine County, TX

Chard Planting Calendar

Activity When Date Range
Start Indoors January 29 Jan 29 – Feb 12
Transplant Outdoors March 5 Mar 5 – Mar 19
Direct Sow February 19 Feb 19 – Mar 12
Harvest April 30 Apr 30 – Jun 18
Fall Sowing September 7 Sep 7 – Sep 21

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

Month-by-Month Timeline

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

Growing Conditions

β˜€οΈ Sun

Partial Shade (3-6 hours)

πŸ’§ Water

Moderate β€” regular watering

πŸ“… Days to Maturity

50–60 days

πŸ§ͺ Soil pH

Needs 6–7 Β· Your soil: N/A

πŸ—ΊοΈ USDA Zone

Zone 8b

πŸ“† Growing Season

256 days in San Augustine County

Growing Tips for San Augustine County

Direct sow or transplant after last frost. Harvest outer leaves regularly to encourage continuous production. Chard tolerates both heat and light frost.

Companion Planting

Good Companions

Avoid Planting Near

  • Corn
  • Cucumbers

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Chard in San Augustine County, TX?

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

What planting zone is San Augustine County, TX?

San Augustine County, Texas is in USDA Hardiness Zone 8b. The average last spring frost is March 5 and first fall frost is November 16.

🌱

Plan Your Garden with Confidence

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