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When to plant Thyme in Menard County, IL

Plant Thyme in Menard County, between April 22 and May 6 — the only viable window. Zone 6a's short season (187 frost-free days) rules out a fall crop.

When to Plant Thyme in Menard County, IL

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.

Menard County, Illinois is in USDA Zone 6a. The average last spring frost is April 15 and the first fall frost is October 19, giving you a growing season of approximately 187 days.

At an elevation of 934 feet, Menard County receives approximately 37 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.

Menard County, IL (Zone 6a) Moderate season
187 days
Last Spring Frost April 15
187 growing days
First Fall Frost October 19

Menard County Soil Profile

Soil Type

Silt Loam

Soil pH

6.2-7

Drainage

Well Drained

Monthly Watering Guide for Thyme

Thyme needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Thyme Needs Rainfall You Supplement Action
Jan 1.8" 0" ❄️ Dormant
Feb 1.4" 0" ❄️ Dormant
Mar 2.4" 0" ❄️ Dormant
Apr 4.3" 3.7" 0.6" 💧 Light watering
May 4.3" 4.4" 0" ✅ Rainfall sufficient
Jun 4.3" 5.1" 0" ✅ Rainfall sufficient
Jul 4.3" 3.6" 0.7" 💧 Light watering
Aug 4.3" 3.4" 0.9" 💧 Light watering
Sep 4.3" 3.3" 1" 💧 Light watering
Oct 4.3" 3.1" 1.2" 💧 Light watering
Nov 2.4" 0" ❄️ Dormant
Dec 2.4" 0" ❄️ Dormant

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

Thyme Planting Timeline — Menard County, IL

Thyme Planting Calendar

Activity When Date Range
Transplant Outdoors April 22 Apr 22 – May 6
Harvest July 1 Jul 1 – Sep 2

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 6a

📆 Growing Season

187 days in Menard County

Growing Tips for Menard 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 Menard County, IL?

Menard County is in Zone 6a with an average last frost of April 15. Plan your Thyme planting based on this frost date — see the calendar above for exact timing.

What planting zone is Menard County, IL?

Menard County, Illinois is in USDA Hardiness Zone 6a. The average last spring frost is April 15 and first fall frost is October 19.

When should I plant Thyme in Menard County, IL?

In Menard County, IL, plant Thyme after the last frost (around April 15) and before the first frost (around October 19). Best results when soil holds above 50°F.

What growing zone is Menard County, IL for Thyme?

Menard 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 Menard County's climate?

Yes — Thyme grows well in Menard County's temperate climate. Menard County averages a 187-day frost-free season, with last frost around April 15 and first frost around October 19.

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Your Menard County Garden Planner — Free

A 22-page printable planner built for Menard 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 Menard County, IL. Local conditions may vary. Last updated: July 2026.

Sources & credits

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