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When to Plant Thyme in Bandera County, TX

Bandera County, Texas Zone 8b May

Bandera County, Texas gardeners: here's your May plan

May is a pivotal month for Bandera County, Texas gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost March 9
Avg. first frost November 16
Soil temp (4") 59°F
Watering Low
Pest pressure High
Daylight 13.5 hrs
  1. Pick thyme

    Taste as you pick. The first ripe produce is the best feedback loop you'll get all season.

Coming up in June — start thinking about
  • 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.

Bandera County, Texas is in USDA Zone 8b. The average last spring frost is March 9 and the first fall frost is November 16, giving you a growing season of approximately 252 days.

At an elevation of 4,846 feet, Bandera County receives approximately 53.2 inches of rainfall annually with predominantly loam soil. Summer highs average 94°F, providing good warmth for Thyme during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Thyme root diseases.

Bandera County, TX (Zone 8b) Long season
252 days
Last Spring Frost March 9
252 growing days
First Fall Frost November 16
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Bandera County Soil Profile

Soil Type

Loam

Soil pH

6.5-7.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (115 days to spare)
Transplant: Mar 9 🍅 Harvest: May 18 – Jul 20
Recommended (50%) ✓ Fits season (112 days to spare)
Transplant: Mar 16 🍅 Harvest: May 25 – Jul 27
Safe Start (90%) ✓ Fits season (101 days to spare)
Transplant: Apr 14 🍅 Harvest: Jun 23 – Aug 25

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 Bandera County

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

Soil pH

Your soil pH (6.5–7.4) is within Thyme's preferred range (6.0–8.0).

Soil Texture

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

Organic Matter

Organic matter is moderate (2.5%). Annual compost additions will help Thyme.

How to Plant Thyme

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

Succession Planting Thyme

4
successive plantings in your 252-day season

Sow every 8 weeks. Last sowing by Aug 18 to harvest before frost.

Plant Water Budget

Plant needs
0.3″/week
Rainfall provides
0.9″/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 1.3" 0" ❄️ Dormant
Feb 2" 0" ❄️ Dormant
Mar 1.3" 3.2" 0" ✅ Rainfall sufficient
Apr 1.3" 6.1" 0" ✅ Rainfall sufficient
May 1.3" 7.4" 0" ✅ Rainfall sufficient
Jun 1.3" 9" 0" ✅ Rainfall sufficient
Jul 1.3" 7.4" 0" ✅ Rainfall sufficient
Aug 1.3" 5.9" 0" ✅ Rainfall sufficient
Sep 1.3" 4.3" 0" ✅ Rainfall sufficient
Oct 1.3" 3.3" 0" ✅ Rainfall sufficient
Nov 1.3" 1.8" 0" ✅ Rainfall sufficient
Dec 1.3" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Bandera 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 ~1,640 GDD — county provides 5,166 GDD Excellent fit

Thyme Planting Timeline — Bandera County, TX

Thyme Planting Calendar

Activity When Date Range
Transplant Outdoors March 16 Mar 16 – Mar 30
Harvest May 25 May 25 – Jul 27

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

Month-by-Month Timeline

MonthActivities
January
February
March Transplant Outdoors
April
May Harvest
June Harvest
July Harvest
August
September
October
November
December
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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 8b

📆 Growing Season

252 days in Bandera County

Growing Tips for Thyme in Bandera County

Direct sow Thyme outdoors after March 09 in Bandera 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 Bandera County, TX?

Bandera County is in Zone 8b with an average last frost of March 9. Plan your Thyme planting based on this frost date — see the calendar above for exact timing.

What planting zone is Bandera County, TX?

Bandera County, Texas is in USDA Hardiness Zone 8b. The average last spring frost is March 9 and first fall frost is November 16.

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Your Bandera County Garden Planner — Free

A 24-page printable planner built for Bandera County (Zone 8b). 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 Bandera County, TX. 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.