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When to Plant Tarragon in Walker 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.

Walker County, Texas is in USDA Zone 8b. The average last spring frost is February 26 and the first fall frost is November 27, giving you a growing season of approximately 274 days.

At an elevation of 38 feet, Walker County receives approximately 72.6 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 90ยฐF, 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. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Tarragon root diseases.

Walker County, TX (Zone 8b) Year-round
274 days
Last Spring Frost February 26
274 growing days
First Fall Frost November 27

Walker County Soil Profile

Soil Type

Sandy Loam

Soil pH

5.4-6.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (137 days to spare)
Transplant: Feb 19 🍅 Harvest: Apr 23 – Jul 2
Recommended (50%) ✓ Fits season (134 days to spare)
Transplant: Mar 5 🍅 Harvest: May 7 – Jul 16
Safe Start (90%) ✓ Fits season (137 days to spare)
Transplant: Mar 20 🍅 Harvest: May 22 – Jul 31

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 Walker County

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

Soil pH

Your soil pH (5.4โ€“6.6) overlaps with Tarragon's range (6.0โ€“7.5), though not a perfect match.

Soil Texture

Sandy soil in Walker 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 (1.9%). 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

5
successive plantings in your 274-day season

Sow every 6.9 weeks. Last sowing by Aug 29 to harvest before frost.

Plant Water Budget

Plant needs
0.4″/week
Rainfall provides
1.1″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Tarragon needs ~1,312 GDD — county provides 4,812 GDD Excellent fit

Tarragon Planting Timeline โ€” Walker County, TX

Tarragon Planting Calendar

Activity When Date Range
Transplant Outdoors March 5 Mar 5 โ€“ Mar 19
Harvest May 7 May 7 โ€“ Jul 16

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

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March Transplant Outdoors
April โ€”
May Harvest
June Harvest
July Harvest
August โ€”
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: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 8b

๐Ÿ“† Growing Season

274 days in Walker County

Growing Tips for Tarragon in Walker County

Direct sow Tarragon outdoors after February 26 in Walker County when soil has warmed and frost danger has passed.

Sandy soil in Walker 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.

With 73" of annual rainfall in Walker County, ensure good drainage for Tarragon โ€” excess moisture can promote root rot and fungal diseases.

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 Walker County, TX?

Walker County is in Zone 8b with an average last frost of February 26. Plan your Tarragon planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Walker County, TX?

Walker County, Texas is in USDA Hardiness Zone 8b. The average last spring frost is February 26 and first fall frost is November 27.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Walker 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 Walker County, TX. Local conditions may vary. Last updated: April 2026.