Blog

When to plant Thyme in Boyd County, KY

In Boyd County, Thyme is a single-season spring crop — there's no second fall window. Plant April 27–May 11 for an 70–90-day harvest, finishing well before the October 23 first frost.

When to Plant Thyme in Boyd County, KY

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.

Boyd County, Kentucky is in USDA Zone 7a. The average last spring frost is April 20 and the first fall frost is October 23, giving you a growing season of approximately 186 days.

At an elevation of 2,124 feet, Boyd County receives approximately 46.2 inches of rainfall annually with predominantly silt loam soil. Summer highs average 91°F, providing good warmth for Thyme during the growing season.

Boyd County, KY (Zone 7a) Moderate season
186 days
Last Spring Frost April 20
186 growing days
First Fall Frost October 23

Boyd County Soil Profile

Soil Type

Silt Loam

Soil pH

5.3-6.5

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 3.4" 0" ❄️ Dormant
Feb 3.6" 0" ❄️ Dormant
Mar 4.6" 0" ❄️ Dormant
Apr 4.3" 3.9" 0.4" 💧 Light watering
May 4.3" 3.5" 0.8" 💧 Light watering
Jun 4.3" 3.8" 0.5" 💧 Light watering
Jul 4.3" 4.6" 0" ✅ Rainfall sufficient
Aug 4.3" 4.5" 0" ✅ Rainfall sufficient
Sep 4.3" 3.8" 0.5" 💧 Light watering
Oct 4.3" 3.4" 0.9" 💧 Light watering
Nov 3.3" 0" ❄️ Dormant
Dec 3.8" 0" ❄️ Dormant

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

Thyme Planting Timeline — Boyd County, KY

Thyme Planting Calendar

Activity When Date Range
Transplant Outdoors April 27 Apr 27 – May 11
Harvest July 6 Jul 6 – Sep 7

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 7a

📆 Growing Season

186 days in Boyd County

Growing Tips for Boyd 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 Boyd County, KY?

Boyd County is in Zone 7a with an average last frost of April 20. Plan your Thyme planting based on this frost date — see the calendar above for exact timing.

What planting zone is Boyd County, KY?

Boyd County, Kentucky is in USDA Hardiness Zone 7a. The average last spring frost is April 20 and first fall frost is October 23.

When should I plant Thyme in Boyd County, KY?

In Boyd County, KY, plant Thyme after the last frost (around April 20) and before the first frost (around October 23). Best results when soil holds above 50°F.

What growing zone is Boyd County, KY for Thyme?

Boyd County sits in USDA Zone 7a. Thyme grows reliably in zones 4a through 9b, so it's a good fit here.

Can Thyme grow in Boyd County's climate?

Yes — Thyme grows well in Boyd County's temperate climate. Boyd County averages a 186-day frost-free season, with last frost around April 20 and first frost around October 23.

🌱

Your Boyd County Garden Planner — Free

A 22-page printable planner built for Boyd County (Zone 7a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

Instant PDF download. No spam, unsubscribe any time.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Boyd County, KY. Local conditions may vary. Last updated: July 2026.

Sources & credits

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