Blog

When to Plant Sweet Corn in Fayette County, TN

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.

Fayette County, Tennessee is in USDA Zone 7b. The average last spring frost is March 29 and the first fall frost is November 1, giving you a growing season of approximately 217 days.

At an elevation of 1,266 feet, Fayette County receives approximately 51.3 inches of rainfall annually with predominantly silt loam soil. Summer highs average 90Β°F, providing good warmth for Sweet Corn during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Sweet Corn root diseases.

Fayette County, TN (Zone 7b) Long season
217 days
Last Spring Frost March 29
217 growing days
First Fall Frost November 1

Fayette County Soil Profile

Soil Type

Silt Loam

Soil pH

5.4-7

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 β€” 4.3" 0" ❄️ Dormant
Feb β€” 4.2" 0" ❄️ Dormant
Mar 4.3" 4.5" 0" βœ… Rainfall sufficient
Apr 4.3" 3.7" 0.6" πŸ’§ Light watering
May 4.3" 4.8" 0" βœ… Rainfall sufficient
Jun 4.3" 4.7" 0" βœ… Rainfall sufficient
Jul 4.3" 5.1" 0" βœ… Rainfall sufficient
Aug 4.3" 5.1" 0" βœ… Rainfall sufficient
Sep 4.3" 3.5" 0.8" πŸ’§ Light watering
Oct 4.3" 3.4" 0.9" πŸ’§ Light watering
Nov 4.3" 4" 0.3" πŸ’§ Light watering
Dec β€” 4.1" 0" ❄️ Dormant

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

Sweet Corn Planting Timeline β€” Fayette County, TN

Sweet Corn Planting Calendar

Activity When Date Range
Direct Sow April 5 Apr 5 – Apr 26
Harvest June 7 Jun 7 – Jul 19

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

Month-by-Month Timeline

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

Growing Conditions

β˜€οΈ Sun

Full Sun (6-8+ hours)

πŸ’§ Water

Moderate β€” regular watering

πŸ“… Days to Maturity

60–90 days

πŸ§ͺ Soil pH

Needs 6–7 Β· Your soil: N/A

πŸ—ΊοΈ USDA Zone

Zone 7b

πŸ“† Growing Season

217 days in Fayette County

Growing Tips for Fayette 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 Fayette County, TN?

Fayette County is in Zone 7b with an average last frost of March 29. Plan your Sweet Corn planting based on this frost date β€” see the calendar above for exact timing.

What planting zone is Fayette County, TN?

Fayette County, Tennessee is in USDA Hardiness Zone 7b. The average last spring frost is March 29 and first fall frost is November 1.

🌱

Plan Your Garden with Confidence

Get our free Garden Planner β€” designed to help Fayette 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 Fayette County, TN. Local conditions may vary. Last updated: April 2026.