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When to Plant Corn in Holt County, NE

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.

Holt County, Nebraska is in USDA Zone 4b. The average last spring frost is May 4 and the first fall frost is October 6, giving you a growing season of approximately 155 days.

At an elevation of 708 feet, Holt County receives approximately 28 inches of rainfall annually with predominantly loam soil. Summer highs average 80ยฐF, so choose short-season varieties of Corn to ensure they mature before fall.

Holt County, NE (Zone 4b) Moderate season
155 days
Last Spring Frost May 4
155 growing days
First Fall Frost October 6

Holt County Soil Profile

Soil Type

Loam

Soil pH

6.7-7.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (38 days to spare)
Transplant: Apr 28 🍅 Harvest: Jun 30 – Aug 25
Recommended (50%) ✓ Fits season (36 days to spare)
Transplant: May 4 🍅 Harvest: Jul 6 – Aug 31
Safe Start (90%) ✓ Fits season (32 days to spare)
Transplant: May 18 🍅 Harvest: Jul 20 – Sep 14

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
0.8″/week
You supply
0.3″/week
Watering frequency Only during dry spells
Season total 399 gal / 100 sq ft
Drought risk

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

Corn needs ~800 GDD — county provides 1,550 GDD Excellent fit

Corn Planting Timeline โ€” Holt County, NE

Corn Planting Calendar

Activity When Date Range
Direct Sow May 18 May 18 โ€“ Jun 8
Harvest July 20 Jul 20 โ€“ Sep 14

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

Month-by-Month Timeline

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

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

60โ€“100 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 4b

Growing Season

155 days

Growing Tips for Holt County

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

Level Up Your Garden

Frequently Asked Questions

When should I plant Corn in Holt County, NE?

Holt County is in Zone 4b with an average last frost of May 4. Plan your Corn planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Holt County, NE?

Holt County, Nebraska is in USDA Hardiness Zone 4b. The average last spring frost is May 4 and first fall frost is October 6.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Holt County gardeners in Zone 4b 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 Holt County, NE. Local conditions may vary. Last updated: April 2026.