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When to Plant Sweet Corn in Maverick County, TX

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.

Maverick County, Texas is in USDA Zone 9a. The average last spring frost is March 5 and the first fall frost is November 21, giving you a growing season of approximately 261 days.

At an elevation of 4,473 feet, Maverick County receives approximately 48.3 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 95°F, so Sweet Corn may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Sweet Corn will need more frequent watering and organic matter to retain nutrients.

Maverick County, TX (Zone 9a) Long season
261 days
Last Spring Frost March 5
261 growing days
First Fall Frost November 21

Maverick County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.3-8.3

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 3.2" 0" ❄️ Dormant
Feb 2.6" 0" ❄️ Dormant
Mar 4.3" 2.9" 1.4" 💧 Light watering
Apr 4.3" 1.5" 2.8" 🚿 Regular watering
May 4.3" 1.2" 3.1" 🚿 Regular watering
Jun 4.3" 1.6" 2.7" 🚿 Regular watering
Jul 4.3" 7.5" 0" ✅ Rainfall sufficient
Aug 4.3" 10.7" 0" ✅ Rainfall sufficient
Sep 4.3" 7" 0" ✅ Rainfall sufficient
Oct 4.3" 4.2" 0.1" 💧 Light watering
Nov 4.3" 2.5" 1.8" 💧 Light watering
Dec 3.5" 0" ❄️ Dormant

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

Sweet Corn Planting Timeline — Maverick County, TX

Sweet Corn Planting Calendar

Activity When Date Range
Direct Sow March 12 Mar 12 – Apr 2
Harvest May 14 May 14 – Jun 25

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

Month-by-Month Timeline

MonthActivities
January
February
March Direct Sow
April Direct Sow
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

261 days in Maverick County

Growing Tips for Maverick 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 Maverick County, TX?

Maverick County is in Zone 9a with an average last frost of March 5. Plan your Sweet Corn planting based on this frost date — see the calendar above for exact timing.

What planting zone is Maverick County, TX?

Maverick County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is March 5 and first fall frost is November 21.

🌱

Your Maverick County Garden Planner — Free

A 22-page printable planner built for Maverick 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 Maverick 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.