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When to Plant Thyme in Madison County, AL

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.

Madison County, Alabama is in USDA Zone 7a. The average last spring frost is April 6 and the first fall frost is October 31, giving you a growing season of approximately 208 days.

At an elevation of 286 feet, Madison County receives approximately 55.3 inches of rainfall annually with predominantly clay loam soil. Summer highs average 90ยฐF, 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. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Thyme root diseases.

Madison County, AL (Zone 7a) Long season
208 days
Last Spring Frost April 6
208 growing days
First Fall Frost October 31

Madison County Soil Profile

Soil Type

Clay Loam

Soil pH

5.6-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (70 days to spare)
Transplant: Apr 3 🍅 Harvest: Jun 12 – Aug 14
Recommended (50%) ✓ Fits season (68 days to spare)
Transplant: Apr 13 🍅 Harvest: Jun 22 – Aug 24
Safe Start (90%) ✓ Fits season (68 days to spare)
Transplant: Apr 26 🍅 Harvest: Jul 5 – Sep 6

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
1.1″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Thyme needs ~1,400 GDD — county provides 3,640 GDD Excellent fit

Thyme Planting Timeline โ€” Madison County, AL

Thyme Planting Calendar

Activity When Date Range
Transplant Outdoors April 13 Apr 13 โ€“ Apr 27
Harvest June 22 Jun 22 โ€“ Aug 24

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

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March โ€”
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 7a

Growing Season

208 days

Growing Tips for Madison 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 Madison County, AL?

Madison County is in Zone 7a with an average last frost of April 6. Plan your Thyme planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Madison County, AL?

Madison County, Alabama is in USDA Hardiness Zone 7a. The average last spring frost is April 6 and first fall frost is October 31.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Madison 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 Madison County, AL. Local conditions may vary. Last updated: April 2026.