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When to Plant Corn in Shackelford 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.

Shackelford County, Texas is in USDA Zone 7b. The average last spring frost is March 30 and the first fall frost is November 11, giving you a growing season of approximately 226 days.

At an elevation of 4,145 feet, Shackelford County receives approximately 59.8 inches of rainfall annually with predominantly loam soil. Summer highs average 89ยฐF, providing good warmth for Corn during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Corn root diseases.

Shackelford County, TX (Zone 7b) Long season
226 days
Last Spring Frost March 30
226 growing days
First Fall Frost November 11

Shackelford County Soil Profile

Soil Type

Loam

Soil pH

6.4-7.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (108 days to spare)
Transplant: Mar 19 🍅 Harvest: May 21 – Jul 16
Recommended (50%) ✓ Fits season (107 days to spare)
Transplant: Mar 30 🍅 Harvest: Jun 1 – Jul 27
Safe Start (90%) ✓ Fits season (104 days to spare)
Transplant: Apr 16 🍅 Harvest: Jun 18 – Aug 13

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 Shackelford County

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

Soil pH

Your soil pH (6.4โ€“7.5) overlaps with Corn's range (6.0โ€“7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is low (1.9%). Add 2-3 inches of compost before planting Corn.

How to Plant Corn

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

Succession Planting Corn

4
successive plantings in your 226-day season

Sow every 6.9 weeks. Last sowing by Aug 03 to harvest before frost.

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
1.1″/week
You supply
0.4″/week
Watering frequency 1-2 times/week
Season total 782 gal / 100 sq ft

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 โ€” 2" 0" โ„๏ธ Dormant
Mar 6.5" 3.4" 3.1" ๐Ÿ’ง Light watering
Apr 6.5" 6.8" 0" โœ… Rainfall sufficient
May 6.5" 8.6" 0" โœ… Rainfall sufficient
Jun 6.5" 9.4" 0" โœ… Rainfall sufficient
Jul 6.5" 8.9" 0" โœ… Rainfall sufficient
Aug 6.5" 6.6" 0" โœ… Rainfall sufficient
Sep 6.5" 5.1" 1.4" ๐Ÿ’ง Light watering
Oct 6.5" 3.7" 2.8" ๐Ÿ’ง Light watering
Nov 6.5" 2.1" 4.4" ๐Ÿšฟ Regular watering
Dec โ€” 1.6" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Shackelford 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 ~1,340 GDD — county provides 3,785 GDD Excellent fit

Corn Planting Timeline โ€” Shackelford County, TX

Corn Planting Calendar

Activity When Date Range
Direct Sow April 6 Apr 6 โ€“ Apr 27
Harvest June 8 Jun 8 โ€“ Aug 3

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

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March โ€”
April Direct Sow
May โ€”
June Harvest
July Harvest
August Harvest
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 7b

๐Ÿ“† Growing Season

226 days in Shackelford County

Growing Tips for Corn in Shackelford County

Direct sow Corn outdoors after March 30 in Shackelford County when soil has warmed and frost danger has passed.

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.

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 Shackelford County, TX?

Shackelford County is in Zone 7b with an average last frost of March 30. Plan your Corn planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Shackelford County, TX?

Shackelford County, Texas is in USDA Hardiness Zone 7b. The average last spring frost is March 30 and first fall frost is November 11.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Shackelford County gardeners in Zone 7b 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 Shackelford County, TX. Local conditions may vary. Last updated: April 2026.