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When to Plant Tarragon in Ector 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.

Ector County, Texas is in USDA Zone 7b. The average last spring frost is March 23 and the first fall frost is November 11, giving you a growing season of approximately 233 days.

At an elevation of 3,652 feet, Ector County receives approximately 44 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 93ยฐF, providing good warmth for Tarragon during the growing season. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Tarragon will need more frequent watering and organic matter to retain nutrients.

Ector County, TX (Zone 7b) Long season
233 days
Last Spring Frost March 23
233 growing days
First Fall Frost November 11

Ector County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.5-8.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (94 days to spare)
Transplant: Mar 20 🍅 Harvest: May 22 – Jul 31
Recommended (50%) ✓ Fits season (93 days to spare)
Transplant: Mar 30 🍅 Harvest: Jun 1 – Aug 10
Safe Start (90%) ✓ Fits season (83 days to spare)
Transplant: Apr 25 🍅 Harvest: Jun 27 – Sep 5

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 Ector County

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

Soil pH

Your soil pH (7.5โ€“8.5) is more alkaline than Tarragon prefers (6.0โ€“7.5). Add sulfur or peat moss to lower pH.

Soil Texture

Sandy soil in Ector County warms quickly in spring but drains fast. Tarragon will need more frequent watering and regular compost additions to retain nutrients.

Organic Matter

Organic matter is low (0.9%). Add 2-3 inches of compost before planting Tarragon.

How to Plant Tarragon

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

Succession Planting Tarragon

4
successive plantings in your 233-day season

Sow every 6.9 weeks. Last sowing by Aug 13 to harvest before frost.

Plant Water Budget

Plant needs
0.4″/week
Rainfall provides
0.8″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

Water stress score is 8/10 โ€” consider drought-tolerant varieties and mulching

Tarragon needs ~1,481 GDD — county provides 4,601 GDD Excellent fit

Tarragon Planting Timeline โ€” Ector County, TX

Tarragon Planting Calendar

Activity When Date Range
Transplant Outdoors March 30 Mar 30 โ€“ Apr 13
Harvest June 1 Jun 1 โ€“ Aug 10

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.4"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

60โ€“90 days

๐Ÿงช Soil pH

Needs 6โ€“7.5 ยท Your soil: too_alkaline

๐Ÿ—บ๏ธ USDA Zone

Zone 7b

๐Ÿ“† Growing Season

233 days in Ector County

Growing Tips for Tarragon in Ector County

Direct sow Tarragon outdoors after March 23 in Ector County when soil has warmed and frost danger has passed.

Sandy soil in Ector County dries quickly โ€” mulch Tarragon with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

Common pests for Tarragon in this region include aphids and slugs. Use row covers early in the season and inspect plants weekly.

General growing tips

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

Level Up Your Garden

Frequently Asked Questions

When should I plant Tarragon in Ector County, TX?

Ector County is in Zone 7b with an average last frost of March 23. Plan your Tarragon planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Ector County, TX?

Ector County, Texas is in USDA Hardiness Zone 7b. The average last spring frost is March 23 and first fall frost is November 11.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Ector County gardeners in Zone 7b 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 Ector County, TX. Local conditions may vary. Last updated: April 2026.