When to Plant Thyme in Dimmit County, TX
Your May gardening checklist
Each item below is timed to Dimmit County, Texas's frost dates and soil temperatures. Skip nothing, stress about nothing.
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Start harvesting thyme
The more you pick, the more the plant produces. Letting fruit overripen tells the plant it's time to stop.
June prep starts now
- First harvests: 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.
Dimmit County, Texas is in USDA Zone 9a. The average last spring frost is February 26 and the first fall frost is December 1, giving you a growing season of approximately 278 days.
At an elevation of 2,638 feet, Dimmit County receives approximately 63.2 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.
Dimmit County Soil Profile
Soil Type
Loam
Soil pH
6.5-7.3
Drainage
Well Drained
Plant Planting Risk Windows
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 Dimmit County
How your county's soil matches Thyme's growing requirements.
Soil pH
Your soil pH (6.5–7.3) is within Thyme's preferred range (6.0–8.0).
Soil Texture
The loam soil in Dimmit County is excellent for Thyme — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (2.4%). Annual compost additions will help Thyme.
How to Plant Thyme
Succession Planting Thyme
Sow every 8 weeks. Last sowing by Sep 02 to harvest before frost.
Plant Water Budget
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 | — | 1.6" | 0" | ❄️ Dormant |
| Feb | 1.3" | 2" | 0" | ✅ Rainfall sufficient |
| Mar | 1.3" | 4" | 0" | ✅ Rainfall sufficient |
| Apr | 1.3" | 6.3" | 0" | ✅ Rainfall sufficient |
| May | 1.3" | 9.1" | 0" | ✅ Rainfall sufficient |
| Jun | 1.3" | 11.3" | 0" | ✅ Rainfall sufficient |
| Jul | 1.3" | 8.6" | 0" | ✅ Rainfall sufficient |
| Aug | 1.3" | 8.1" | 0" | ✅ Rainfall sufficient |
| Sep | 1.3" | 5.3" | 0" | ✅ Rainfall sufficient |
| Oct | 1.3" | 3.5" | 0" | ✅ Rainfall sufficient |
| Nov | 1.3" | 2" | 0" | ✅ Rainfall sufficient |
| Dec | 1.3" | 1.4" | 0" | ✅ Rainfall sufficient |
Water needs are for active growing months only (Feb–Dec in Dimmit 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 Planting Timeline — Dimmit County, TX
Thyme Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | March 5 | Mar 5 – Mar 19 |
| Harvest | May 14 | May 14 – Jul 16 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Transplant Outdoors |
| April | — |
| May | Harvest |
| June | Harvest |
| July | Harvest |
| August | — |
| 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 9a
📆 Growing Season
278 days in Dimmit County
Growing Tips for Thyme in Dimmit County
Direct sow Thyme outdoors after February 26 in Dimmit County when soil has warmed and frost danger has passed.
With 63" of annual rainfall in Dimmit County, ensure good drainage for Thyme — excess moisture can promote root rot and fungal diseases.
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 →
Thyme in Other Locations
Frequently Asked Questions
When should I plant Thyme in Dimmit County, TX?
Dimmit County is in Zone 9a with an average last frost of February 26. Plan your Thyme planting based on this frost date — see the calendar above for exact timing.
What planting zone is Dimmit County, TX?
Dimmit County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is February 26 and first fall frost is December 1.
Your Dimmit County Garden Planner — Free
A 24-page printable planner built for Dimmit County (Zone 9a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.