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When to Plant Tarragon in Comanche County, TX

French tarragon is a perennial herb with slender leaves and a distinctive anise-like flavor essential in French cooking. It does not produce viable seed and must be propagated vegetatively.

Comanche County, Texas is in USDA Zone 8a. The average last spring frost is March 19 and the first fall frost is November 14, giving you a growing season of approximately 240 days.

At an elevation of 2,216 feet, Comanche County receives approximately 59.6 inches of rainfall annually with predominantly loam soil. Summer highs average 91Β°F, providing good warmth for Tarragon during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Tarragon root diseases.

Comanche County, TX (Zone 8a) Long season
240 days
Last Spring Frost March 19
240 growing days
First Fall Frost November 14

Comanche County Soil Profile

Soil Type

Loam

Soil pH

6.6-7.5

Drainage

Well Drained

Monthly Watering Guide for Tarragon

Tarragon needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Tarragon Needs Rainfall You Supplement Action
Jan β€” 1.6" 0" ❄️ Dormant
Feb β€” 2.1" 0" ❄️ Dormant
Mar 4.3" 3.4" 0.9" πŸ’§ Light watering
Apr 4.3" 5.9" 0" βœ… Rainfall sufficient
May 4.3" 9.3" 0" βœ… Rainfall sufficient
Jun 4.3" 8.7" 0" βœ… Rainfall sufficient
Jul 4.3" 8.8" 0" βœ… Rainfall sufficient
Aug 4.3" 6.6" 0" βœ… Rainfall sufficient
Sep 4.3" 5.5" 0" βœ… Rainfall sufficient
Oct 4.3" 4.1" 0.2" πŸ’§ Light watering
Nov 4.3" 1.9" 2.4" 🚿 Regular watering
Dec β€” 1.6" 0" ❄️ Dormant

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

Tarragon Planting Timeline β€” Comanche County, TX

Tarragon Planting Calendar

Activity When Date Range
Transplant Outdoors March 26 Mar 26 – Apr 9
Harvest May 28 May 28 – Aug 6

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

Month-by-Month Timeline

MonthActivities
January β€”
February β€”
March Transplant Outdoors
April Transplant Outdoors
May Harvest
June Harvest
July Harvest
August Harvest
September β€”
October β€”
November β€”
December β€”

Growing Conditions

β˜€οΈ Sun

Full Sun (6-8+ hours)

πŸ’§ Water

Moderate β€” regular watering

πŸ“… Days to Maturity

60–90 days

πŸ§ͺ Soil pH

Needs 6–7.5 Β· Your soil: N/A

πŸ—ΊοΈ USDA Zone

Zone 8a

πŸ“† Growing Season

240 days in Comanche County

Growing Tips for Comanche County

Purchase plants or divisions as French tarragon does not grow true from seed. Plant in well-drained soil. Divide every 3-4 years to maintain vigor. Harvest tips regularly for best flavor.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Tarragon in Comanche County, TX?

Comanche County is in Zone 8a with an average last frost of March 19. Plan your Tarragon planting based on this frost date β€” see the calendar above for exact timing.

What planting zone is Comanche County, TX?

Comanche County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 19 and first fall frost is November 14.

🌱

Plan Your Garden with Confidence

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