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When to plant Lemon Thyme in Lyon County, MN

Lyon County sits in cold Zone 5a. Plant Lemon Thyme May 11–May 25 for the single annual harvest; the October 2 first frost closes the window.

When to Plant Lemon Thyme in Lyon County, MN

Lyon County, Minnesota Zone 5a August

August in the garden — Lyon County, Minnesota

August rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Lyon County, Minnesota.

Avg. last frost May 4
Avg. first frost October 2
Soil temp (4") 72°F
Watering Moderate
Pest pressure High
Daylight 13.9 hrs

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Lemon thyme is a low-growing perennial herb with tiny, citrus-scented leaves. It combines the savory quality of thyme with a bright lemon flavor, excellent with fish and poultry.

Lyon County, Minnesota is in USDA Zone 5a. The average last spring frost is May 4 and the first fall frost is October 2, giving you a growing season of approximately 151 days.

At an elevation of 634 feet, Lyon County receives approximately 35.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 82°F, so choose short-season varieties of Lemon Thyme to ensure they mature before fall.

Lyon County, MN (Zone 5a) Moderate season
151 days
Last Spring Frost May 4
151 growing days
First Fall Frost October 2

Lyon County Soil Profile

Soil Type

Silt Loam

Soil pH

5.8-7.2

Drainage

Well Drained

Monthly Watering Guide for Lemon Thyme

Lemon 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 Lemon Thyme Needs Rainfall You Supplement Action
Jan 1.3" 0" ❄️ Dormant
Feb 1.6" 0" ❄️ Dormant
Mar 2.5" 0" ❄️ Dormant
Apr 3.8" 0" ❄️ Dormant
May 4.3" 4.5" 0" ✅ Rainfall sufficient
Jun 4.3" 4.1" 0.2" 💧 Light watering
Jul 4.3" 3.6" 0.7" 💧 Light watering
Aug 4.3" 3.4" 0.9" 💧 Light watering
Sep 4.3" 3.2" 1.1" 💧 Light watering
Oct 4.3" 2.9" 1.4" 💧 Light watering
Nov 2.8" 0" ❄️ Dormant
Dec 2.1" 0" ❄️ Dormant

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

Lemon Thyme Planting Timeline — Lyon County, MN

Lemon Thyme Planting Calendar

Activity When Date Range
Transplant Outdoors May 11 May 11 – May 25
Harvest July 20 Jul 20 – Sep 21

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

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 5a

📆 Growing Season

151 days in Lyon County

Growing Tips for Lyon County

Start from cuttings or divisions. Plant in well-drained soil. Trim back after flowering. Use as a fragrant ground cover or edging plant along garden paths.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Lemon Thyme in Lyon County, MN?

Lyon County is in Zone 5a with an average last frost of May 4. Plan your Lemon Thyme planting based on this frost date — see the calendar above for exact timing.

What planting zone is Lyon County, MN?

Lyon County, Minnesota is in USDA Hardiness Zone 5a. The average last spring frost is May 4 and first fall frost is October 2.

When should I plant Lemon Thyme in Lyon County, MN?

In Lyon County, MN, plant Lemon Thyme after the last frost (around May 4) and before the first frost (around October 2). Best results when soil holds above 50°F.

What growing zone is Lyon County, MN for Lemon Thyme?

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

Can Lemon Thyme grow in Lyon County's climate?

Yes — Lemon Thyme grows well in Lyon County's temperate climate. Lyon County averages a 151-day frost-free season, with last frost around May 4 and first frost around October 2.

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Your Lyon County Garden Planner — Free

A 22-page printable planner built for Lyon County (Zone 5a). 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 Lyon County, MN. Local conditions may vary. Last updated: August 2026.

Sources & credits

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