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When to Plant Cumin in Travis County, TX

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.

Travis County, Texas is in USDA Zone 8b. The average last spring frost is March 6 and the first fall frost is November 23, giving you a growing season of approximately 262 days.

At an elevation of 3,682 feet, Travis County receives approximately 66.3 inches of rainfall annually with predominantly clay soil. Summer highs average 92ยฐF, providing good warmth for Cumin during the growing season. Clay soil retains moisture well for Cumin, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Cumin root diseases.

Travis County, TX (Zone 8b) Long season
262 days
Last Spring Frost March 6
262 growing days
First Fall Frost November 23

Travis County Soil Profile

Soil Type

Clay

Soil pH

6.8-8.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (100 days to spare)
Start indoors: Jan 22 Transplant: Feb 19 🍅 Harvest: Jun 4 – Aug 6
Recommended (50%) ✓ Fits season (101 days to spare)
Start indoors: Jan 30 Transplant: Feb 27 🍅 Harvest: Jun 12 – Aug 14
Safe Start (90%) ✓ Fits season (89 days to spare)
Start indoors: Mar 1 Transplant: Mar 29 🍅 Harvest: Jul 12 – Sep 13

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 Travis County

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

Soil pH

Your soil pH (6.8โ€“8.4) overlaps with Cumin's range (6.0โ€“8.0), though not a perfect match.

Soil Texture

Your clay soil in Travis County is workable for Cumin. Add compost annually to improve structure.

Organic Matter

Organic matter is moderate (3.0%). Annual compost additions will help 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
Drought risk

Water stress score is 6/10 โ€” consider drought-tolerant varieties and mulching

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 โ€” 1.6" 0" โ„๏ธ Dormant
Feb โ€” 2" 0" โ„๏ธ Dormant
Mar 2.2" 4.4" 0" โœ… Rainfall sufficient
Apr 2.2" 6.6" 0" โœ… Rainfall sufficient
May 2.2" 11.1" 0" โœ… Rainfall sufficient
Jun 2.2" 9.5" 0" โœ… Rainfall sufficient
Jul 2.2" 8.6" 0" โœ… Rainfall sufficient
Aug 2.2" 8.2" 0" โœ… Rainfall sufficient
Sep 2.2" 5.9" 0" โœ… Rainfall sufficient
Oct 2.2" 4.1" 0" โœ… Rainfall sufficient
Nov 2.2" 2.5" 0" โœ… Rainfall sufficient
Dec โ€” 1.8" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Travis County). Supplement amounts are based on average rainfall โ€” 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" 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.

Cumin needs ~2,090 GDD — county provides 4,978 GDD Excellent fit

Cumin Planting Timeline โ€” Travis County, TX

Cumin Planting Calendar

Activity When Date Range
Start Indoors January 30 Jan 30 โ€“ Feb 13
Transplant Outdoors February 27 Feb 27 โ€“ Mar 13
Direct Sow February 20 Feb 20 โ€“ Mar 13
Harvest June 12 Jun 12 โ€“ Aug 14
Fall Sowing September 14 Sep 14 โ€“ Sep 28

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.5"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

100โ€“120 days

๐Ÿงช Soil pH

Needs 6โ€“8 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 8b

๐Ÿ“† Growing Season

262 days in Travis County

Growing Tips for Cumin in Travis County

Direct sow Cumin outdoors after March 06 in Travis County when soil has warmed and frost danger has passed.

With Travis County's clay soil (37% clay), work in 3-4 inches of compost before planting Cumin. Avoid tilling when soil is wet to prevent compaction.

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 Travis County, TX?

Travis County is in Zone 8b with an average last frost of March 6. Plan your Cumin planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Travis County, TX?

Travis County, Texas is in USDA Hardiness Zone 8b. The average last spring frost is March 6 and first fall frost is November 23.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Travis County gardeners in Zone 8b 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 Travis County, TX. Local conditions may vary. Last updated: April 2026.