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When to Plant Chard in Kimble County, TX

Kimble County, Texas Zone 8a May

May to-do list for Kimble County, Texas

Your garden in Kimble County, Texas is working on a schedule, even when you're not. Here's where you should be this May.

Avg. last frost March 28
Avg. first frost November 10
Soil temp (4") 59°F
Watering Low
Pest pressure High
Daylight 13.5 hrs
  1. Start chard indoors

    Your window is short. These crops want several weeks of indoor growth before they go outside.

  2. Start harvesting chard

    The more you pick, the more the plant produces. Letting fruit overripen tells the plant it's time to stop.

Get ahead of June
  • First harvests: chard

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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.

Kimble County, Texas is in USDA Zone 8a. The average last spring frost is March 28 and the first fall frost is November 10, giving you a growing season of approximately 227 days.

At an elevation of 4,850 feet, Kimble County receives approximately 57.4 inches of rainfall annually with predominantly loam soil. Summer highs average 97°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.

Kimble County, TX (Zone 8a) Long season
227 days
Last Spring Frost March 28
227 growing days
First Fall Frost November 10
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Kimble County Soil Profile

Soil Type

Loam

Soil pH

6.4-7.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (124 days to spare)
Start indoors: Feb 6 Transplant: Mar 13 🍅 Harvest: May 8 – Jun 26
Recommended (50%) ✓ Fits season (122 days to spare)
Start indoors: Feb 21 Transplant: Mar 28 🍅 Harvest: May 23 – Jul 11
Safe Start (90%) ✓ Fits season (121 days to spare)
Start indoors: Mar 13 Transplant: Apr 17 🍅 Harvest: Jun 12 – Jul 31

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 Kimble County

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

Soil pH

Your soil pH (6.4–7.6) overlaps with Chard's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Drainage

Drainage is adequate for Chard.

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 10 weeks before your first frost date for a fall harvest.

Succession Planting Chard

5
successive plantings in your 227-day season

Sow every 5.7 weeks. Last sowing by Sep 11 to harvest before frost.

For a dedicated fall crop, sow by Sep 01.

Plant Water Budget

Plant needs
0.8″/week
Rainfall provides
1.1″/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 1.4" 0" ❄️ Dormant
Feb 2.2" 0" ❄️ Dormant
Mar 3.5" 3.3" 0.2" 💧 Light watering
Apr 3.5" 5.6" 0" ✅ Rainfall sufficient
May 3.5" 8.1" 0" ✅ Rainfall sufficient
Jun 3.5" 10" 0" ✅ Rainfall sufficient
Jul 3.5" 7.6" 0" ✅ Rainfall sufficient
Aug 3.5" 7.4" 0" ✅ Rainfall sufficient
Sep 3.5" 4.7" 0" ✅ Rainfall sufficient
Oct 3.5" 3.7" 0" ✅ Rainfall sufficient
Nov 3.5" 2.1" 1.4" 💧 Light watering
Dec 1.3" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Kimble 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 ~1,251 GDD — county provides 5,164 GDD Excellent fit

Chard Planting Timeline — Kimble County, TX

Chard Planting Calendar

Activity When Date Range
Start Indoors February 21 Feb 21 – Mar 7
Transplant Outdoors March 28 Mar 28 – Apr 11
Direct Sow March 14 Mar 14 – Apr 4
Harvest May 23 May 23 – Jul 11
Fall Sowing September 1 Sep 1 – Sep 15

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

Month-by-Month Timeline

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

🗺️ USDA Zone

Zone 8a

📆 Growing Season

227 days in Kimble County

Growing Tips for Chard in Kimble County

Direct sow Chard outdoors after March 28 in Kimble County when soil has warmed and frost danger has passed.

Summer highs in Kimble County reach 97°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 Kimble County, TX?

Kimble County is in Zone 8a with an average last frost of March 28. Plan your Chard planting based on this frost date — see the calendar above for exact timing.

What planting zone is Kimble County, TX?

Kimble County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 28 and first fall frost is November 10.

🌱

Your Kimble County Garden Planner — Free

A 24-page printable planner built for Kimble County (Zone 8a). 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 Kimble 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.