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When to Plant Chard in Kenedy County, TX

Kenedy County, Texas Zone 9b May

May to-do list for Kenedy County, Texas

A quick May briefing for Kenedy County, Texas gardeners — what's urgent, what's next, and what can wait.

Avg. last frost February 13
Avg. first frost December 13
Soil temp (4") 74°F
Watering Low
Pest pressure High
Daylight 13.3 hrs
  1. Harvest chard as they ripen

    Don't tug. Use scissors or pruners for clean cuts — torn stems invite disease.

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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.

Kenedy County, Texas is in USDA Zone 9b. The average last spring frost is February 13 and the first fall frost is December 13, giving you a growing season of approximately 303 days.

At an elevation of 1,757 feet, Kenedy County receives approximately 58.7 inches of rainfall annually with predominantly loam soil. Summer highs average 101°F, so Chard may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Chard root diseases.

Kenedy County, TX (Zone 9b) Year-round
303 days
Last Spring Frost February 13
303 growing days
First Fall Frost December 13
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Kenedy County Soil Profile

Soil Type

Loam

Soil pH

6.6-7.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (216 days to spare)
Start indoors: Dec 21 Transplant: Jan 18 🍅 Harvest: Mar 15 – May 3
Recommended (50%) ✓ Fits season (198 days to spare)
Start indoors: Jan 16 Transplant: Feb 13 🍅 Harvest: Apr 10 – May 29
Safe Start (90%) ✓ Fits season (188 days to spare)
Start indoors: Feb 6 Transplant: Mar 6 🍅 Harvest: May 1 – Jun 19

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 Kenedy County

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

Soil pH

Your soil pH (6.6–7.5) is more alkaline than Chard prefers (6.0–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

The loam soil in Kenedy County is excellent for Chard — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.2%). Annual compost additions will help Chard.

How to Plant Chard

1"
Planting Depth
15"
Between Plants
24"
Between Rows

Fall planting: Sow 8 weeks before your first frost date for a fall harvest.

Succession Planting Chard

7
successive plantings in your 303-day season

Sow every 5.7 weeks. Last sowing by Oct 14 to harvest before frost.

For a dedicated fall crop, sow by Oct 18.

Plant Water Budget

Plant needs
0.8″/week
Rainfall provides
0.8″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Chard

Chard needs approximately 0.8 inches of water per week (3.5" per month). Here's how your county's rainfall compares month by month.

Month Chard Needs Rainfall You Supplement Action
Jan 1.5" 0" ❄️ Dormant
Feb 3.5" 2" 1.5" 💧 Light watering
Mar 3.5" 3.9" 0" ✅ Rainfall sufficient
Apr 3.5" 6" 0" ✅ Rainfall sufficient
May 3.5" 8.2" 0" ✅ Rainfall sufficient
Jun 3.5" 9.2" 0" ✅ Rainfall sufficient
Jul 3.5" 8" 0" ✅ Rainfall sufficient
Aug 3.5" 7.8" 0" ✅ Rainfall sufficient
Sep 3.5" 5.6" 0" ✅ Rainfall sufficient
Oct 3.5" 3.2" 0.3" 💧 Light watering
Nov 3.5" 1.9" 1.6" 💧 Light watering
Dec 3.5" 1.4" 2.1" 🚿 Regular watering

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

Chard 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" — every day above 50°F 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.

Chard needs ~1,416 GDD — county provides 7,828 GDD Excellent fit

Chard Planting Timeline — Kenedy County, TX

Chard Planting Calendar

Activity When Date Range
Start Indoors January 16 Jan 16 – Jan 30
Transplant Outdoors February 13 Feb 13 – Feb 27
Direct Sow January 23 Jan 23 – Feb 13
Harvest April 10 Apr 10 – May 29
Fall Sowing October 18 Oct 18 – Nov 1

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

Month-by-Month Timeline

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

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

0.8"/week · Natural rainfall sufficient

📅 Days to Maturity

50–60 days

🧪 Soil pH

Needs 6–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 9b

📆 Growing Season

303 days in Kenedy County

Growing Tips for Chard in Kenedy County

Direct sow Chard outdoors after February 13 in Kenedy County when soil has warmed and frost danger has passed.

Summer highs in Kenedy County reach 101°F — grow Chard as a spring or fall crop. Use shade cloth if planting in summer.

General growing tips

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 Kenedy County, TX?

Kenedy County is in Zone 9b with an average last frost of February 13. Plan your Chard planting based on this frost date — see the calendar above for exact timing.

What planting zone is Kenedy County, TX?

Kenedy County, Texas is in USDA Hardiness Zone 9b. The average last spring frost is February 13 and first fall frost is December 13.

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Your Kenedy County Garden Planner — Free

A 24-page printable planner built for Kenedy County (Zone 9b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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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 Kenedy County, TX. Local conditions may vary. Last updated: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.