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When to Plant Thyme in Garvin County, OK

Garvin County, Oklahoma Zone 7b May

Your May game plan for Garvin County, Oklahoma

We've pulled the most time-sensitive tasks for Garvin County, Oklahoma this May and put them front and centre. Tackle them in order.

Avg. last frost April 4
Avg. first frost November 3
Soil temp (4") 66°F
Watering Low
Pest pressure Moderate
Daylight 13.8 hrs
Before June arrives, get these ready
  • First harvests: thyme

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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.

Garvin County, Oklahoma is in USDA Zone 7b. The average last spring frost is April 4 and the first fall frost is November 3, giving you a growing season of approximately 213 days.

At an elevation of 515 feet, Garvin County receives approximately 31.4 inches of rainfall annually with predominantly loam soil. Summer highs average 93°F, providing good warmth for Thyme during the growing season.

Garvin County, OK (Zone 7b) Long season
213 days
Last Spring Frost April 4
213 growing days
First Fall Frost November 3

Garvin County Soil Profile

Soil Type

Loam

Soil pH

6.3-7.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (73 days to spare)
Transplant: Apr 2 🍅 Harvest: Jun 11 – Aug 13
Recommended (50%) ✓ Fits season (73 days to spare)
Transplant: Apr 11 🍅 Harvest: Jun 20 – Aug 22
Safe Start (90%) ✓ Fits season (80 days to spare)
Transplant: Apr 22 🍅 Harvest: Jul 1 – Sep 2

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 Garvin County

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

Soil pH

Your soil pH (6.3–7.2) is within Thyme's preferred range (6.0–8.0).

Soil Texture

The loam soil in Garvin County is excellent for Thyme — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (3.3%). Annual compost additions will help Thyme.

How to Plant Thyme

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

Succession Planting Thyme

3
successive plantings in your 213-day season

Sow every 8 weeks. Last sowing by Aug 05 to harvest before frost.

Plant Water Budget

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

Water stress score is 6/10 — 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 0.7" 0" ❄️ Dormant
Feb 1.2" 0" ❄️ Dormant
Mar 2.2" 0" ❄️ Dormant
Apr 1.3" 3.2" 0" ✅ Rainfall sufficient
May 1.3" 4.1" 0" ✅ Rainfall sufficient
Jun 1.3" 5" 0" ✅ Rainfall sufficient
Jul 1.3" 4.1" 0" ✅ Rainfall sufficient
Aug 1.3" 4.1" 0" ✅ Rainfall sufficient
Sep 1.3" 2.9" 0" ✅ Rainfall sufficient
Oct 1.3" 2.1" 0" ✅ Rainfall sufficient
Nov 1.3" 1.1" 0.2" 💧 Light watering
Dec 0.8" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Nov in Garvin County). Supplement amounts are based on average rainfall — 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" — every day above 50°F 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 ~1,580 GDD — county provides 4,206 GDD Excellent fit

Thyme Planting Timeline — Garvin County, OK

Thyme Planting Calendar

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

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.3"/week · Natural rainfall sufficient

📅 Days to Maturity

70–90 days

🧪 Soil pH

Needs 6–8 · Your soil: ideal

🗺️ USDA Zone

Zone 7b

📆 Growing Season

213 days in Garvin County

Growing Tips for Thyme in Garvin County

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

Garvin County is in Zone 7b with an average last frost of April 4. Plan your Thyme planting based on this frost date — see the calendar above for exact timing.

What planting zone is Garvin County, OK?

Garvin County, Oklahoma is in USDA Hardiness Zone 7b. The average last spring frost is April 4 and first fall frost is November 3.

🌱

Your Garvin County Garden Planner — Free

A 24-page printable planner built for Garvin County (Zone 7b). 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 Garvin County, OK. Local conditions may vary. Last updated: May 2026.

Sources & credits

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