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When to Plant Thyme in Coweta County, GA

Thyme is a low-growing perennial herb with tiny, aromatic leaves and a warm, earthy flavor. It is one of the most versatile culinary and medicinal herbs.

Coweta County, Georgia is in USDA Zone 7b. The average last spring frost is March 23 and the first fall frost is November 6, giving you a growing season of approximately 228 days.

At an elevation of 264 feet, Coweta County receives approximately 48.4 inches of rainfall annually with predominantly clay loam soil. Summer highs average 91ยฐF, providing good warmth for Thyme during the growing season. Clay soil retains moisture well for Thyme, but amend with compost to improve drainage and prevent root rot.

Coweta County, GA (Zone 7b) Long season
228 days
Last Spring Frost March 23
228 growing days
First Fall Frost November 6

Coweta County Soil Profile

Soil Type

Clay Loam

Soil pH

5.8-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (91 days to spare)
Transplant: Mar 22 🍅 Harvest: May 31 – Aug 2
Recommended (50%) ✓ Fits season (88 days to spare)
Transplant: Mar 30 🍅 Harvest: Jun 8 – Aug 10
Safe Start (90%) ✓ Fits season (92 days to spare)
Transplant: Apr 18 🍅 Harvest: Jun 27 – Aug 29

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
0.9″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Thyme needs ~1,460 GDD — county provides 4,161 GDD Excellent fit

Thyme Planting Timeline โ€” Coweta County, GA

Thyme Planting Calendar

Activity When Date Range
Transplant Outdoors March 30 Mar 30 โ€“ Apr 13
Harvest June 8 Jun 8 โ€“ Aug 10

Plant 0.5" deep ยท 8" apart ยท Rows 12" apart

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March Transplant Outdoors
April Transplant Outdoors
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€“90 days

Soil pH

6 โ€“ 8

USDA Zone

Zone 7b

Growing Season

228 days

Growing Tips for Coweta County

Start from seed, cuttings, or divisions. Plant in well-drained, lean soil. Prune lightly after flowering. Replace plants every 3-4 years when they become woody.

Companion Planting

Good Companions

Level Up Your Garden

Frequently Asked Questions

When should I plant Thyme in Coweta County, GA?

Coweta County is in Zone 7b with an average last frost of March 23. Plan your Thyme planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Coweta County, GA?

Coweta County, Georgia is in USDA Hardiness Zone 7b. The average last spring frost is March 23 and first fall frost is November 6.

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Plan Your Garden with Confidence

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