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When to Plant Sweet Corn in Walker County, TX

Walker County, Texas Zone 9a June

Your June planting checklist for Walker County, Texas

Each item below is timed to Walker County, Texas's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost February 26
Avg. first frost November 27
Soil temp (4") 81°F
Watering Low
Pest pressure High
Daylight 14 hrs
  1. Bring in the sweet corn

    This is the payoff month. Bring a basket, bring a friend, and get into the beds.

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Sweet corn is bred for high sugar content in its kernels, which convert to starch rapidly after harvest. Modern supersweet varieties hold their sweetness longer.

Walker County, Texas is in USDA Zone 9a. The average last spring frost is February 26 and the first fall frost is November 27, giving you a growing season of approximately 274 days.

At an elevation of 38 feet, Walker County receives approximately 72.6 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 90°F, providing good warmth for Sweet Corn during the growing season. Sandy soil warms quickly in spring — great for early planting — but Sweet Corn will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Sweet Corn root diseases.

Walker County, TX (Zone 9a) Year-round
274 days
Last Spring Frost February 26
274 growing days
First Fall Frost November 27

Walker County Soil Profile

Soil Type

Sandy Loam

Soil pH

5.4-6.6

Drainage

Well Drained

Monthly Watering Guide for Sweet Corn

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

Month Sweet Corn Needs Rainfall You Supplement Action
Jan 1.7" 0" ❄️ Dormant
Feb 4.3" 2.1" 2.2" 🚿 Regular watering
Mar 4.3" 5.1" 0" ✅ Rainfall sufficient
Apr 4.3" 7.6" 0" ✅ Rainfall sufficient
May 4.3" 12.1" 0" ✅ Rainfall sufficient
Jun 4.3" 9.9" 0" ✅ Rainfall sufficient
Jul 4.3" 10.2" 0" ✅ Rainfall sufficient
Aug 4.3" 9.6" 0" ✅ Rainfall sufficient
Sep 4.3" 5.9" 0" ✅ Rainfall sufficient
Oct 4.3" 4.2" 0.1" 💧 Light watering
Nov 4.3" 2.3" 2" 💧 Light watering
Dec 1.7" 0" ❄️ Dormant

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

Sweet Corn Planting Timeline — Walker County, TX

Sweet Corn Planting Calendar

Activity When Date Range
Direct Sow March 5 Mar 5 – Mar 26
Harvest May 7 May 7 – Jun 18

Plant 1" deep · 12" apart · Rows 36" apart

Month-by-Month Timeline

MonthActivities
January
February
March Direct Sow
April
May Harvest
June Harvest
July
August
September
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 6–7 · Your soil: N/A

🗺️ USDA Zone

Zone 9a

📆 Growing Season

274 days in Walker County

Growing Tips for Walker County

Plant in blocks of at least 4 rows for wind pollination. Direct sow after soil is warm. Isolate supersweet varieties from other corn types to prevent cross-pollination.

Companion Planting

Good Companions

Avoid Planting Near

  • Tomatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Sweet Corn in Walker County, TX?

Walker County is in Zone 9a with an average last frost of February 26. Plan your Sweet Corn planting based on this frost date — see the calendar above for exact timing.

What planting zone is Walker County, TX?

Walker County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is February 26 and first fall frost is November 27.

🌱

Your Walker County Garden Planner — Free

A 22-page printable planner built for Walker County (Zone 9a). 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 Walker County, TX. Local conditions may vary. Last updated: June 2026.

Sources & credits

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