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When to Plant Thyme in Jasper County, MS

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.

Jasper County, Mississippi is in USDA Zone 8a. The average last spring frost is March 15 and the first fall frost is November 12, giving you a growing season of approximately 242 days.

At an elevation of 468 feet, Jasper County receives approximately 53.1 inches of rainfall annually with predominantly clay loam soil. Summer highs average 94ยฐF, 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.

Jasper County, MS (Zone 8a) Long season
242 days
Last Spring Frost March 15
242 growing days
First Fall Frost November 12

Jasper County Soil Profile

Soil Type

Clay Loam

Soil pH

5.5-6.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (101 days to spare)
Transplant: Mar 13 🍅 Harvest: May 22 – Jul 24
Recommended (50%) ✓ Fits season (102 days to spare)
Transplant: Mar 22 🍅 Harvest: May 31 – Aug 2
Safe Start (90%) ✓ Fits season (96 days to spare)
Transplant: Apr 14 🍅 Harvest: Jun 23 – Aug 25

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 ~1,640 GDD — county provides 4,961 GDD Excellent fit

Thyme Planting Timeline โ€” Jasper County, MS

Thyme Planting Calendar

Activity When Date Range
Transplant Outdoors March 22 Mar 22 โ€“ Apr 5
Harvest May 31 May 31 โ€“ Aug 2

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 Harvest
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 8a

Growing Season

242 days

Growing Tips for Jasper 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 Jasper County, MS?

Jasper County is in Zone 8a with an average last frost of March 15. Plan your Thyme planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Jasper County, MS?

Jasper County, Mississippi is in USDA Hardiness Zone 8a. The average last spring frost is March 15 and first fall frost is November 12.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Jasper County gardeners in Zone 8a 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 Jasper County, MS. Local conditions may vary. Last updated: April 2026.