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When to Plant Sweet Corn in Pecos 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.

Pecos County, Texas is in USDA Zone 7b. The average last spring frost is March 13 and the first fall frost is November 15, giving you a growing season of approximately 247 days.

At an elevation of 1,445 feet, Pecos County receives approximately 42.2 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 103ยฐF, so Sweet Corn may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Sweet Corn will need more frequent watering and organic matter to retain nutrients.

Pecos County, TX (Zone 7b) Long season
247 days
Last Spring Frost March 13
247 growing days
First Fall Frost November 15

Pecos County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.4-8.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (147 days to spare)
Transplant: Mar 4 🍅 Harvest: May 6 – Jun 17
Recommended (50%) ✓ Fits season (142 days to spare)
Transplant: Mar 13 🍅 Harvest: May 15 – Jun 26
Safe Start (90%) ✓ Fits season (133 days to spare)
Transplant: Apr 8 🍅 Harvest: Jun 10 – Jul 22

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.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.7″/week
You supply
0.3″/week
Watering frequency 1-2 times/week
Season total 745 gal / 100 sq ft
Drought risk

Water stress score is 6/10 โ€” consider drought-tolerant varieties and mulching

Sweet Corn needs ~2,044 GDD — county provides 6,730 GDD Excellent fit

Sweet Corn Planting Timeline โ€” Pecos County, TX

Sweet Corn Planting Calendar

Activity When Date Range
Direct Sow March 20 Mar 20 โ€“ Apr 10
Harvest May 22 May 22 โ€“ Jul 3

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

Month-by-Month Timeline

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

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

60โ€“90 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 7b

Growing Season

247 days

Growing Tips for Pecos 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

Level Up Your Garden

Frequently Asked Questions

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

Pecos County is in Zone 7b with an average last frost of March 13. Plan your Sweet Corn planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Pecos County, TX?

Pecos County, Texas is in USDA Hardiness Zone 7b. The average last spring frost is March 13 and first fall frost is November 15.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Pecos County gardeners in Zone 7b organize planting dates, track what's growing, and never miss a planting window.

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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 Pecos County, TX. Local conditions may vary. Last updated: April 2026.