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When to Plant Thyme in Muskogee County, OK

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.

Muskogee County, Oklahoma is in USDA Zone 7a. The average last spring frost is April 4 and the first fall frost is October 30, giving you a growing season of approximately 209 days.

At an elevation of 651 feet, Muskogee County receives approximately 25.9 inches of rainfall annually with predominantly loam soil. Summer highs average 92ยฐF, providing good warmth for Thyme during the growing season.

Muskogee County, OK (Zone 7a) Long season
209 days
Last Spring Frost April 4
209 growing days
First Fall Frost October 30

Muskogee County Soil Profile

Soil Type

Loam

Soil pH

6.2-7.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (72 days to spare)
Transplant: Apr 2 🍅 Harvest: Jun 11 – Aug 13
Recommended (50%) ✓ Fits season (69 days to spare)
Transplant: Apr 11 🍅 Harvest: Jun 20 – Aug 22
Safe Start (90%) ✓ Fits season (79 days to spare)
Transplant: Apr 24 🍅 Harvest: Jul 3 – Sep 4

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 Muskogee County

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

Soil pH

Your soil pH (6.2โ€“7.6) is within Thyme's preferred range (6.0โ€“8.0).

Soil Texture

The loam soil in Muskogee County is excellent for Thyme โ€” good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is excellent (4.2%) โ€” Thyme will thrive.

How to Plant Thyme

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

Succession Planting Thyme

3
successive plantings in your 209-day season

Sow every 8 weeks. Last sowing by Aug 01 to harvest before frost.

Plant Water Budget

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

Water stress score is 6/10 โ€” consider drought-tolerant varieties and mulching

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 โ€” 0.5" 0" โ„๏ธ Dormant
Feb โ€” 0.9" 0" โ„๏ธ Dormant
Mar โ€” 1.8" 0" โ„๏ธ Dormant
Apr 1.3" 2.9" 0" โœ… Rainfall sufficient
May 1.3" 3.4" 0" โœ… Rainfall sufficient
Jun 1.3" 4.4" 0" โœ… Rainfall sufficient
Jul 1.3" 3.6" 0" โœ… Rainfall sufficient
Aug 1.3" 3" 0" โœ… Rainfall sufficient
Sep 1.3" 2.6" 0" โœ… Rainfall sufficient
Oct 1.3" 1.5" 0" โœ… Rainfall sufficient
Nov โ€” 0.8" 0" โ„๏ธ Dormant
Dec โ€” 0.6" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Aprโ€“Oct in Muskogee County). Supplement amounts are based on average rainfall โ€” 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" โ€” every day above 50ยฐF 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 ~1,520 GDD — county provides 3,971 GDD Excellent fit

Thyme Planting Timeline โ€” Muskogee County, OK

Thyme Planting Calendar

Activity When Date Range
Transplant Outdoors April 11 Apr 11 โ€“ Apr 25
Harvest June 20 Jun 20 โ€“ Aug 22

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

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March โ€”
April Transplant Outdoors
May โ€”
June Harvest
July Harvest
August Harvest
September โ€”
October โ€”
November โ€”
December โ€”

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.3"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

70โ€“90 days

๐Ÿงช Soil pH

Needs 6โ€“8 ยท Your soil: ideal

๐Ÿ—บ๏ธ USDA Zone

Zone 7a

๐Ÿ“† Growing Season

209 days in Muskogee County

Growing Tips for Thyme in Muskogee County

Direct sow Thyme outdoors after April 04 in Muskogee 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 Muskogee County, OK?

Muskogee County is in Zone 7a with an average last frost of April 4. Plan your Thyme planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Muskogee County, OK?

Muskogee County, Oklahoma is in USDA Hardiness Zone 7a. The average last spring frost is April 4 and first fall frost is October 30.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Muskogee County gardeners in Zone 7a organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

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