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When to Plant Lemon Thyme in Clarion County, PA

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.

Clarion County, Pennsylvania is in USDA Zone 6a. The average last spring frost is May 9 and the first fall frost is October 15, giving you a growing season of approximately 159 days.

At an elevation of 840 feet, Clarion County receives approximately 44.8 inches of rainfall annually with predominantly silt loam soil. Summer highs average 84°F, so choose short-season varieties of Lemon Thyme to ensure they mature before fall.

Clarion County, PA (Zone 6a) Moderate season
159 days
Last Spring Frost May 9
159 growing days
First Fall Frost October 15

Clarion County Soil Profile

Soil Type

Silt Loam

Soil pH

6.0-7.0

Drainage

Well Drained

Lemon Thyme Planting Timeline — Clarion County, PA

Lemon Thyme Planting Calendar

Activity When Date Range
Transplant Outdoors May 16 May 16 – May 30
Harvest July 25 Jul 25 – Sep 26

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 6a

📆 Growing Season

159 days in Clarion County

Growing Tips for Clarion 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 Clarion County, PA?

Clarion County is in Zone 6a with an average last frost of May 9. Plan your Lemon Thyme planting based on this frost date — see the calendar above for exact timing.

What planting zone is Clarion County, PA?

Clarion County, Pennsylvania is in USDA Hardiness Zone 6a. The average last spring frost is May 9 and first fall frost is October 15.

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Your Clarion County Garden Planner — Free

A 22-page printable planner built for Clarion 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 Clarion County, PA. Local conditions may vary. Last updated: June 2026.

Sources & credits

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