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When to Plant Corn in Gonzales County, TX

Corn is a warm-season grass grown for its sweet ears, which are best eaten soon after harvest. It is wind-pollinated and must be planted in blocks for good kernel fill.

Gonzales County, Texas is in USDA Zone 8b. The average last spring frost is February 28 and the first fall frost is November 28, giving you a growing season of approximately 273 days.

At an elevation of 4,385 feet, Gonzales County receives approximately 67 inches of rainfall annually with predominantly loam soil. Summer highs average 97ยฐF, so Corn may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Corn root diseases.

Gonzales County, TX (Zone 8b) Year-round
273 days
Last Spring Frost February 28
273 growing days
First Fall Frost November 28

Gonzales County Soil Profile

Soil Type

Loam

Soil pH

6.2-7.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (156 days to spare)
Transplant: Feb 15 🍅 Harvest: Apr 19 – Jun 14
Recommended (50%) ✓ Fits season (154 days to spare)
Transplant: Feb 28 🍅 Harvest: May 2 – Jun 27
Safe Start (90%) ✓ Fits season (145 days to spare)
Transplant: Mar 23 🍅 Harvest: May 25 – Jul 20

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 Gonzales County

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

Soil pH

Your soil pH (6.2โ€“7.4) overlaps with Corn's range (6.0โ€“7.0), though not a perfect match.

Soil Texture

The loam soil in Gonzales County is excellent for Corn โ€” good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.4%). Annual compost additions will help Corn.

How to Plant Corn

1"
Planting Depth
12"
Between Plants
36"
Between Rows

Succession Planting Corn

5
successive plantings in your 273-day season

Sow every 6.9 weeks. Last sowing by Aug 20 to harvest before frost.

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
1.0″/week
You supply
0.6″/week
Watering frequency 1-2 times/week
Season total 1,384 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Corn

Corn needs approximately 1.5 inches of water per week (6.5" per month). Here's how your county's rainfall compares month by month.

Month Corn Needs Rainfall You Supplement Action
Jan โ€” 1.5" 0" โ„๏ธ Dormant
Feb 6.5" 2" 4.5" ๐Ÿšฟ Regular watering
Mar 6.5" 4.3" 2.2" ๐Ÿ’ง Light watering
Apr 6.5" 7.7" 0" โœ… Rainfall sufficient
May 6.5" 10.3" 0" โœ… Rainfall sufficient
Jun 6.5" 9.8" 0" โœ… Rainfall sufficient
Jul 6.5" 9" 0" โœ… Rainfall sufficient
Aug 6.5" 8.8" 0" โœ… Rainfall sufficient
Sep 6.5" 5.3" 1.2" ๐Ÿ’ง Light watering
Oct 6.5" 4.3" 2.2" ๐Ÿ’ง Light watering
Nov 6.5" 2.5" 4" ๐Ÿšฟ Regular watering
Dec โ€” 1.6" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Febโ€“Nov in Gonzales County). Supplement amounts are based on average rainfall โ€” actual needs vary with temperature, soil, and mulching.

Corn 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" โ€” every day above 50ยฐF 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.

Corn needs ~1,820 GDD — county provides 6,233 GDD Excellent fit

Corn Planting Timeline โ€” Gonzales County, TX

Corn Planting Calendar

Activity When Date Range
Direct Sow March 7 Mar 7 โ€“ Mar 28
Harvest May 9 May 9 โ€“ Jul 4

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

1.5"/week ยท 1-2 times/week

๐Ÿ“… Days to Maturity

60โ€“100 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 8b

๐Ÿ“† Growing Season

273 days in Gonzales County

Growing Tips for Corn in Gonzales County

Direct sow Corn outdoors after February 28 in Gonzales County when soil has warmed and frost danger has passed.

With summer highs reaching 97ยฐF in Gonzales County, provide afternoon shade for Corn and water deeply in the morning.

Common pests for Corn in this region include corn earworm and corn borers. Use row covers early in the season and inspect plants weekly.

General growing tips

Plant in blocks of at least 4 rows rather than single rows for proper pollination. Direct sow after soil reaches 60F. Side-dress with nitrogen when plants are knee-high.

Recommended Corn Varieties for Gonzales County

Heat-tolerant varieties that silk well in high temps

Silver Queen (92d) Incredible (85d)

Companion Planting

Good Companions

Avoid Planting Near

  • Tomatoes
  • Celery

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Corn in Gonzales County, TX?

Gonzales County is in Zone 8b with an average last frost of February 28. Plan your Corn planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Gonzales County, TX?

Gonzales County, Texas is in USDA Hardiness Zone 8b. The average last spring frost is February 28 and first fall frost is November 28.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Gonzales County gardeners in Zone 8b organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Gonzales County, TX. Local conditions may vary. Last updated: April 2026.