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When to Plant Chard in Coryell 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.

Coryell County, Texas is in USDA Zone 8a. The average last spring frost is March 16 and the first fall frost is November 15, giving you a growing season of approximately 244 days.

At an elevation of 3,488 feet, Coryell County receives approximately 65 inches of rainfall annually with predominantly clay soil. Summer highs average 91Β°F, providing good warmth for Chard during the growing season. Clay soil retains moisture well for Chard, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Chard root diseases.

Coryell County, TX (Zone 8a) Long season
244 days
Last Spring Frost March 16
244 growing days
First Fall Frost November 15

Coryell County Soil Profile

Soil Type

Clay

Soil pH

7-8.3

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€” 1.8" 0" ❄️ Dormant
Feb β€” 2.3" 0" ❄️ Dormant
Mar 4.3" 3.8" 0.5" πŸ’§ Light watering
Apr 4.3" 6.9" 0" βœ… Rainfall sufficient
May 4.3" 9.1" 0" βœ… Rainfall sufficient
Jun 4.3" 9.5" 0" βœ… Rainfall sufficient
Jul 4.3" 9" 0" βœ… Rainfall sufficient
Aug 4.3" 7.2" 0" βœ… Rainfall sufficient
Sep 4.3" 7.1" 0" βœ… Rainfall sufficient
Oct 4.3" 4.6" 0" βœ… Rainfall sufficient
Nov 4.3" 2" 2.3" 🚿 Regular watering
Dec β€” 1.7" 0" ❄️ Dormant

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

Chard Planting Timeline β€” Coryell County, TX

Chard Planting Calendar

Activity When Date Range
Start Indoors February 9 Feb 9 – Feb 23
Transplant Outdoors March 16 Mar 16 – Mar 30
Direct Sow March 2 Mar 2 – Mar 23
Harvest May 11 May 11 – Jun 29
Fall Sowing September 6 Sep 6 – Sep 20

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

Month-by-Month Timeline

MonthActivities
January β€”
February Start Indoors
March Transplant Outdoors Direct Sow
April β€”
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 8a

πŸ“† Growing Season

244 days in Coryell County

Growing Tips for Coryell 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 Coryell County, TX?

Coryell County is in Zone 8a with an average last frost of March 16. Plan your Chard planting based on this frost date β€” see the calendar above for exact timing.

What planting zone is Coryell County, TX?

Coryell County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 16 and first fall frost is November 15.

🌱

Plan Your Garden with Confidence

Get our free Garden Planner β€” designed to help Coryell County gardeners in Zone 8a organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Coryell County, TX. Local conditions may vary. Last updated: April 2026.