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When to plant Thyme in White County County,

White County County's 176-day season only supports one Thyme planting per year. Sow between May 1 and May 15 for the best chance at full maturity before October 17.

When to Plant Thyme in White County, IN

Thyme
White County, Indiana Zone 6a June

June in the garden — White County, Indiana

Welcome to June in Zone 6a. These are the moves that will have the biggest impact on your growing season.

Avg. last frost April 24
Avg. first frost October 17
Soil temp (4") 71°F
Watering Low
Pest pressure High
Daylight 14.9 hrs
To set up a strong July, finish these tasks
  • First harvests: thyme

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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.

White County, Indiana is in USDA Zone 6a. The average last spring frost is April 24 and the first fall frost is October 17, giving you a growing season of approximately 176 days.

At an elevation of 754 feet, White County receives approximately 40.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 84°F, so choose short-season varieties of Thyme to ensure they mature before fall.

White County, IN (Zone 6a) Moderate season
176 days
Last Spring Frost April 24
176 growing days
First Fall Frost October 17
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White County Soil Profile

Soil Type

Silt Loam

Soil pH

5.9-6.8

Drainage

Well Drained

Thyme Planting Risk Windows

Early Start (70% safe) ✓ Fits season (35 days to spare)
Transplant: Apr 26 🍅 Harvest: Jul 5 – Sep 6
Recommended (50%) ✓ Fits season (36 days to spare)
Transplant: May 1 🍅 Harvest: Jul 10 – Sep 11
Safe Start (90%) ✓ Fits season (36 days to spare)
Transplant: May 14 🍅 Harvest: Jul 23 – Sep 24

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.

Soil Compatibility in White County

How your county's soil matches Thyme's growing requirements.

Soil pH

Your soil pH (5.9–6.8) overlaps with Thyme's range (6.0–8.0), though not a perfect match.

Soil Texture

The silt loam soil in White County is excellent for Thyme — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is excellent (4.9%) — Thyme will thrive.

How to Plant Thyme

0.5"
Planting Depth
8"
Between Plants
12"
Between Rows

Succession Planting Thyme

2
successive plantings in your 176-day season

Sow every 8 weeks. Last sowing by Jul 19 to harvest before frost.

Thyme Water Budget

Plant needs
0.3″/week
Rainfall provides
1.0″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Thyme

Thyme needs approximately 0.3 inches of water per week (1.3" per month). Here's how your county's rainfall compares month by month.

Month Thyme Needs Rainfall You Supplement Action
Jan 1.6" 0" ❄️ Dormant
Feb 1.6" 0" ❄️ Dormant
Mar 2.4" 0" ❄️ Dormant
Apr 1.3" 4.4" 0" ✅ Rainfall sufficient
May 1.3" 4.2" 0" ✅ Rainfall sufficient
Jun 1.3" 5.5" 0" ✅ Rainfall sufficient
Jul 1.3" 4.7" 0" ✅ Rainfall sufficient
Aug 1.3" 3.8" 0" ✅ Rainfall sufficient
Sep 1.3" 3.7" 0" ✅ Rainfall sufficient
Oct 1.3" 3.4" 0" ✅ Rainfall sufficient
Nov 2.5" 0" ❄️ Dormant
Dec 2.3" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in White County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Thyme Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Thyme needs ~1,040 GDD — county provides 2,288 GDD Excellent fit

Thyme Planting Timeline — White County, IN

Thyme Planting Calendar

Activity When Date Range
Transplant Outdoors May 1 May 1 – May 15
Harvest July 10 Jul 10 – Sep 11

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

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.3"/week · Natural rainfall sufficient

📅 Days to Maturity

70–90 days

🧪 Soil pH

Needs 6–8 · Your soil: acceptable

🗺️ USDA Zone

Zone 6a

📆 Growing Season

176 days in White County

Growing Tips for Thyme in White County

Direct sow Thyme outdoors after April 24 in White County when soil has warmed and frost danger has passed.

General growing tips

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 White County, IN?

White County is in Zone 6a with an average last frost of April 24. Plan your Thyme planting based on this frost date — see the calendar above for exact timing.

What planting zone is White County, IN?

White County, Indiana is in USDA Hardiness Zone 6a. The average last spring frost is April 24 and first fall frost is October 17.

When should I plant Thyme in White County, ?

In White County, , plant Thyme after the last frost (around April 24) and before the first frost (around October 17). Best results when soil holds above 50°F.

What growing zone is White County, for Thyme?

White County sits in USDA Zone 6a. Thyme grows reliably in zones 4a through 9b, so it's a good fit here.

Can Thyme grow in White County's climate?

Yes — Thyme grows well in White County's temperate climate. White County averages a 176-day frost-free season, with last frost around April 24 and first frost around October 17.

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Your White County Garden Planner — Free

A 22-page printable planner built for White County (Zone 6a). 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 White County, IN. Local conditions may vary. Last updated: June 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.