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When to Plant Thyme in Wise County, TX

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.

Wise County, Texas is in USDA Zone 7b. The average last spring frost is March 25 and the first fall frost is November 11, giving you a growing season of approximately 231 days.

At an elevation of 3,288 feet, Wise County receives approximately 53.8 inches of rainfall annually with predominantly clay soil. Summer highs average 92ยฐF, providing good warmth for Thyme during the growing season. Clay soil retains moisture well for Thyme, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Thyme root diseases.

Wise County, TX (Zone 7b) Long season
231 days
Last Spring Frost March 25
231 growing days
First Fall Frost November 11

Wise County Soil Profile

Soil Type

Clay

Soil pH

6.8-7.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (94 days to spare)
Transplant: Mar 21 🍅 Harvest: May 30 – Aug 1
Recommended (50%) ✓ Fits season (91 days to spare)
Transplant: Apr 1 🍅 Harvest: Jun 10 – Aug 12
Safe Start (90%) ✓ Fits season (85 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 Wise County

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

Soil pH

Your soil pH (6.8โ€“7.8) is within Thyme's preferred range (6.0โ€“8.0).

Soil Texture

Heavy clay soil (46% clay) in Wise County compacts easily and drains slowly. Amend with compost and avoid working soil when wet.

Drainage

Thyme prefers dry conditions but your soil drains poorly. Use raised beds or mounded rows to prevent root rot.

Organic Matter

Organic matter is moderate (2.9%). 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 231-day season

Sow every 8 weeks. Last sowing by Aug 13 to harvest before frost.

Plant Water Budget

Plant needs
0.3″/week
Rainfall provides
1.0″/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€” 1.3" 0" โ„๏ธ Dormant
Feb โ€” 2.1" 0" โ„๏ธ Dormant
Mar 1.3" 3.3" 0" โœ… Rainfall sufficient
Apr 1.3" 6.7" 0" โœ… Rainfall sufficient
May 1.3" 8.8" 0" โœ… Rainfall sufficient
Jun 1.3" 7.9" 0" โœ… Rainfall sufficient
Jul 1.3" 6.5" 0" โœ… Rainfall sufficient
Aug 1.3" 5.8" 0" โœ… Rainfall sufficient
Sep 1.3" 4.6" 0" โœ… Rainfall sufficient
Oct 1.3" 3.7" 0" โœ… Rainfall sufficient
Nov 1.3" 1.6" 0" โœ… Rainfall sufficient
Dec โ€” 1.3" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Wise 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 4,389 GDD Excellent fit

Thyme Planting Timeline โ€” Wise County, TX

Thyme Planting Calendar

Activity When Date Range
Transplant Outdoors April 1 Apr 1 โ€“ Apr 15
Harvest June 10 Jun 10 โ€“ Aug 12

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 7b

๐Ÿ“† Growing Season

231 days in Wise County

Growing Tips for Thyme in Wise County

Direct sow Thyme outdoors after March 25 in Wise County when soil has warmed and frost danger has passed.

With Wise County's clay soil (46% clay), work in 3-4 inches of compost before planting Thyme. Avoid tilling when soil is wet to prevent compaction.

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 Wise County, TX?

Wise County is in Zone 7b with an average last frost of March 25. Plan your Thyme planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Wise County, TX?

Wise County, Texas is in USDA Hardiness Zone 7b. The average last spring frost is March 25 and first fall frost is November 11.

๐ŸŒฑ

Plan Your Garden with Confidence

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

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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 Wise County, TX. Local conditions may vary. Last updated: April 2026.