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When to Plant Sunflower in Fayette County, AL

Sunflowers are tall, cheerful annuals grown for their edible seeds and as pollinator magnets. They come in sizes from 2-foot dwarfs to 12-foot giants.

Fayette County, Alabama is in USDA Zone 7a. The average last spring frost is March 26 and the first fall frost is November 5, giving you a growing season of approximately 224 days.

At an elevation of 336 feet, Fayette County receives approximately 55.7 inches of rainfall annually with predominantly clay loam soil. Summer highs average 90ยฐF, providing good warmth for Sunflower during the growing season. Clay soil retains moisture well for Sunflower, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Sunflower root diseases.

Fayette County, AL (Zone 7a) Long season
224 days
Last Spring Frost March 26
224 growing days
First Fall Frost November 5

Fayette County Soil Profile

Soil Type

Clay Loam

Soil pH

5.2-6.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (92 days to spare)
Start indoors: Jan 29 Transplant: Apr 2 🍅 Harvest: Jun 11 – Jul 30
Recommended (50%) ✓ Fits season (91 days to spare)
Start indoors: Feb 5 Transplant: Apr 9 🍅 Harvest: Jun 18 – Aug 6
Safe Start (90%) ✓ Fits season (90 days to spare)
Start indoors: Feb 25 Transplant: Apr 29 🍅 Harvest: Jul 8 – Aug 26

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
0.5″/week
Rainfall provides
1.0″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Sunflower needs ~1,488 GDD — county provides 3,920 GDD Excellent fit

Sunflower Planting Timeline โ€” Fayette County, AL

Sunflower Planting Calendar

Activity When Date Range
Start Indoors February 5 Feb 5 โ€“ Feb 19
Transplant Outdoors April 9 Apr 9 โ€“ Apr 23
Direct Sow April 2 Apr 2 โ€“ Apr 23
Harvest June 18 Jun 18 โ€“ Aug 6

Plant 1" deep ยท 18" apart ยท Rows 30" apart

Month-by-Month Timeline

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

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Low โ€” drought tolerant

Days to Maturity

70โ€“100 days

Soil pH

6 โ€“ 7.5

USDA Zone

Zone 7a

Growing Season

224 days

Growing Tips for Fayette County

Direct sow after last frost. Stake tall varieties in windy areas. Harvest seed heads when the back turns brown and seeds are plump. Dry heads upside down.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Level Up Your Garden

Frequently Asked Questions

When should I plant Sunflower in Fayette County, AL?

Fayette County is in Zone 7a with an average last frost of March 26. Plan your Sunflower planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Fayette County, AL?

Fayette County, Alabama is in USDA Hardiness Zone 7a. The average last spring frost is March 26 and first fall frost is November 5.

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Plan Your Garden with Confidence

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