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When to Plant Cumin in Throckmorton County, TX

Throckmorton County, Texas Zone 8a May

What to do in May

A quick May briefing for Throckmorton County, Texas gardeners — what's urgent, what's next, and what can wait.

Avg. last frost March 31
Avg. first frost November 9
Soil temp (4") 54°F
Watering Low
Pest pressure Moderate
Daylight 13.7 hrs
  1. Get cumin seeds going inside

    Your window is short. These crops want several weeks of indoor growth before they go outside.

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Cumin is a warm-season annual herb whose seeds are one of the most widely used spices globally. It requires a long, hot growing season of 3-4 months.

Throckmorton County, Texas is in USDA Zone 8a. The average last spring frost is March 31 and the first fall frost is November 9, giving you a growing season of approximately 223 days.

At an elevation of 4,952 feet, Throckmorton County receives approximately 60.7 inches of rainfall annually with predominantly loam soil. Summer highs average 89°F, providing good warmth for Cumin during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Cumin root diseases.

Throckmorton County, TX (Zone 8a) Long season
223 days
Last Spring Frost March 31
223 growing days
First Fall Frost November 9
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Throckmorton County Soil Profile

Soil Type

Loam

Soil pH

6.5-7.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (64 days to spare)
Start indoors: Feb 14 Transplant: Mar 14 🍅 Harvest: Jun 27 – Aug 29
Recommended (50%) ✓ Fits season (62 days to spare)
Start indoors: Feb 24 Transplant: Mar 24 🍅 Harvest: Jul 7 – Sep 8
Safe Start (90%) ✓ Fits season (60 days to spare)
Start indoors: Mar 12 Transplant: Apr 9 🍅 Harvest: Jul 23 – Sep 24

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 Throckmorton County

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

Soil pH

Your soil pH (6.5–7.2) is within Cumin's preferred range (6.0–8.0).

Soil Texture

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

Organic Matter

Organic matter is low (1.9%). Add 2-3 inches of compost before planting Cumin.

How to Plant Cumin

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

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Plant Water Budget

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

Monthly Watering Guide for Cumin

Cumin needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.

Month Cumin Needs Rainfall You Supplement Action
Jan 1.6" 0" ❄️ Dormant
Feb 2.2" 0" ❄️ Dormant
Mar 2.2" 4" 0" ✅ Rainfall sufficient
Apr 2.2" 5.9" 0" ✅ Rainfall sufficient
May 2.2" 8.5" 0" ✅ Rainfall sufficient
Jun 2.2" 11.2" 0" ✅ Rainfall sufficient
Jul 2.2" 7.3" 0" ✅ Rainfall sufficient
Aug 2.2" 7.9" 0" ✅ Rainfall sufficient
Sep 2.2" 4.9" 0" ✅ Rainfall sufficient
Oct 2.2" 3.4" 0" ✅ Rainfall sufficient
Nov 2.2" 2.3" 0" ✅ Rainfall sufficient
Dec 1.5" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Throckmorton County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Cumin 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.

Cumin needs ~1,842 GDD — county provides 3,735 GDD Excellent fit

Cumin Planting Timeline — Throckmorton County, TX

Cumin Planting Calendar

Activity When Date Range
Start Indoors February 24 Feb 24 – Mar 10
Transplant Outdoors March 24 Mar 24 – Apr 7
Direct Sow March 17 Mar 17 – Apr 7
Harvest July 7 Jul 7 – Sep 8
Fall Sowing August 31 Aug 31 – Sep 14

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

Month-by-Month Timeline

MonthActivities
January
February Start Indoors
March Start Indoors Transplant Outdoors Direct Sow
April Transplant Outdoors Direct Sow
May
June
July Harvest
August Fall Sowing Harvest
September Fall Sowing Harvest
October
November
December
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Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

100–120 days

🧪 Soil pH

Needs 6–8 · Your soil: ideal

🗺️ USDA Zone

Zone 8a

📆 Growing Season

223 days in Throckmorton County

Growing Tips for Cumin in Throckmorton County

Direct sow Cumin outdoors after March 31 in Throckmorton County when soil has warmed and frost danger has passed.

Common pests for Cumin in this region include carrot rust fly and parsleyworm. Use row covers early in the season and inspect plants weekly.

General growing tips

Start seeds indoors 4 weeks before last frost. Transplant after all danger of frost. Harvest when seed heads turn brown. Requires consistent warmth for proper seed development.

Companion Planting

Good Companions

Avoid Planting Near

  • Fennel

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Cumin in Throckmorton County, TX?

Throckmorton County is in Zone 8a with an average last frost of March 31. Plan your Cumin planting based on this frost date — see the calendar above for exact timing.

What planting zone is Throckmorton County, TX?

Throckmorton County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 31 and first fall frost is November 9.

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Your Throckmorton County Garden Planner — Free

A 24-page printable planner built for Throckmorton County (Zone 8a). 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 Throckmorton 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.