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When to Plant Cumin in Aransas County, TX

Aransas County, Texas Zone 9b May

Top priorities for Aransas County, Texas gardeners in May

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

Avg. last frost February 10
Avg. first frost December 12
Soil temp (4") 78°F
Watering Low
Pest pressure High
Daylight 13.4 hrs
  1. Pick cumin

    This is the payoff month. Bring a basket, bring a friend, and get into the beds.

Coming up in June — start thinking about
  • First harvests: cumin

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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.

Aransas County, Texas is in USDA Zone 9b. The average last spring frost is February 10 and the first fall frost is December 12, giving you a growing season of approximately 305 days.

At an elevation of 173 feet, Aransas County receives approximately 67.4 inches of rainfall annually with predominantly loam soil. Summer highs average 104°F, so Cumin may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Cumin root diseases.

Aransas County, TX (Zone 9b) Year-round
305 days
Last Spring Frost February 10
305 growing days
First Fall Frost December 12

Aransas County Soil Profile

Soil Type

Loam

Soil pH

6.7-7.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (159 days to spare)
Start indoors: Dec 21 Transplant: Jan 11 🍅 Harvest: Apr 26 – Jun 28
Recommended (50%) ✓ Fits season (144 days to spare)
Start indoors: Jan 13 Transplant: Feb 3 🍅 Harvest: May 19 – Jul 21
Safe Start (90%) ✓ Fits season (124 days to spare)
Start indoors: Feb 11 Transplant: Mar 4 🍅 Harvest: Jun 17 – Aug 19

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 Aransas County

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

Soil pH

Your soil pH (6.7–7.7) is within Cumin's preferred range (6.0–8.0).

Soil Texture

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

Organic Matter

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

How to Plant Cumin

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

Fall planting: Sow 8 weeks before your first frost date for a fall harvest.

Plant Water Budget

Plant needs
0.5″/week
Rainfall provides
0.9″/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 1.9" 0" ❄️ Dormant
Feb 2.2" 2.4" 0" ✅ Rainfall sufficient
Mar 2.2" 4.3" 0" ✅ Rainfall sufficient
Apr 2.2" 6.7" 0" ✅ Rainfall sufficient
May 2.2" 10.1" 0" ✅ Rainfall sufficient
Jun 2.2" 12" 0" ✅ Rainfall sufficient
Jul 2.2" 8.2" 0" ✅ Rainfall sufficient
Aug 2.2" 8.7" 0" ✅ Rainfall sufficient
Sep 2.2" 5.4" 0" ✅ Rainfall sufficient
Oct 2.2" 3.9" 0" ✅ Rainfall sufficient
Nov 2.2" 2.2" 0" ✅ Rainfall sufficient
Dec 2.2" 1.7" 0.5" 💧 Light watering

Water needs are for active growing months only (Feb–Dec in Aransas 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 ~3,080 GDD — county provides 8,568 GDD Excellent fit

Cumin Planting Timeline — Aransas County, TX

Cumin Planting Calendar

Activity When Date Range
Start Indoors January 13 Jan 13 – Jan 27
Transplant Outdoors February 3 Feb 3 – Feb 17
Direct Sow January 20 Jan 20 – Feb 10
Harvest May 19 May 19 – Jul 21
Fall Sowing October 17 Oct 17 – Oct 31

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

Month-by-Month Timeline

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

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 9b

📆 Growing Season

305 days in Aransas County

Growing Tips for Cumin in Aransas County

Direct sow Cumin outdoors after February 10 in Aransas County when soil has warmed and frost danger has passed.

With summer highs reaching 104°F in Aransas County, provide afternoon shade for Cumin and water deeply in the morning.

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 Aransas County, TX?

Aransas County is in Zone 9b with an average last frost of February 10. Plan your Cumin planting based on this frost date — see the calendar above for exact timing.

What planting zone is Aransas County, TX?

Aransas County, Texas is in USDA Hardiness Zone 9b. The average last spring frost is February 10 and first fall frost is December 12.

🌱

Your Aransas County Garden Planner — Free

A 24-page printable planner built for Aransas County (Zone 9b). 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 Aransas 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.