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When to plant Thyme in Newton County, IN

Newton County sits in cold Zone 5b. Plant Thyme April 30–May 14 for the single annual harvest; the October 11 first frost closes the window.

When to Plant Thyme in Newton County, IN

Thyme

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.

Newton County, Indiana is in USDA Zone 5b. The average last spring frost is April 23 and the first fall frost is October 11, giving you a growing season of approximately 171 days.

At an elevation of 1,044 feet, Newton County receives approximately 40.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 86°F, providing good warmth for Thyme during the growing season.

Newton County, IN (Zone 5b) Moderate season
171 days
Last Spring Frost April 23
171 growing days
First Fall Frost October 11

Newton County Soil Profile

Soil Type

Silt Loam

Soil pH

6.0-7.0

Drainage

Well Drained

Thyme Planting Timeline — Newton County, IN

Thyme Planting Calendar

Activity When Date Range
Transplant Outdoors April 30 Apr 30 – May 14
Harvest July 9 Jul 9 – Sep 10

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

Month-by-Month Timeline

MonthActivities
January
February
March
April Transplant Outdoors
May Transplant Outdoors
June
July Harvest
August Harvest
September Harvest
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

Low — drought tolerant

📅 Days to Maturity

70–90 days

🧪 Soil pH

Needs 6–8 · Your soil: N/A

🗺️ USDA Zone

Zone 5b

📆 Growing Season

171 days in Newton County

Growing Tips for Newton 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

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Thyme in Newton County, IN?

Newton County is in Zone 5b with an average last frost of April 23. Plan your Thyme planting based on this frost date — see the calendar above for exact timing.

What planting zone is Newton County, IN?

Newton County, Indiana is in USDA Hardiness Zone 5b. The average last spring frost is April 23 and first fall frost is October 11.

When should I plant Thyme in Newton County, IN?

In Newton County, IN, plant Thyme after the last frost (around April 23) and before the first frost (around October 11). Best results when soil holds above 50°F.

What growing zone is Newton County, IN for Thyme?

Newton County sits in USDA Zone 5b. Thyme grows reliably in zones 4a through 9b, so it's a good fit here.

Can Thyme grow in Newton County's climate?

Yes — Thyme grows well in Newton County's temperate climate. Newton County averages a 171-day frost-free season, with last frost around April 23 and first frost around October 11.

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Your Newton County Garden Planner — Free

A 22-page printable planner built for Newton County (Zone 5b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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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 Newton County, IN. Local conditions may vary. Last updated: June 2026.

Sources & credits

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