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When to Plant Tarragon in Gates County, NC

Gates County, North Carolina Zone 8a May

This month in Gates County, North Carolina

May is a pivotal month for Gates County, North Carolina gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost March 26
Avg. first frost November 16
Soil temp (4") 69°F
Watering Low
Pest pressure Moderate
Daylight 13.9 hrs
Get ahead of June
  • First harvests: tarragon

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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.

Gates County, North Carolina is in USDA Zone 8a. The average last spring frost is March 26 and the first fall frost is November 16, giving you a growing season of approximately 235 days.

At an elevation of 950 feet, Gates County receives approximately 49.9 inches of rainfall annually with predominantly clay loam soil. Summer highs average 91°F, providing good warmth for Tarragon during the growing season. Clay soil retains moisture well for Tarragon, but amend with compost to improve drainage and prevent root rot.

Gates County, NC (Zone 8a) Long season
235 days
Last Spring Frost March 26
235 growing days
First Fall Frost November 16

Gates County Soil Profile

Soil Type

Clay Loam

Soil pH

5.2-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (96 days to spare)
Transplant: Mar 26 🍅 Harvest: May 28 – Aug 6
Recommended (50%) ✓ Fits season (95 days to spare)
Transplant: Apr 2 🍅 Harvest: Jun 4 – Aug 13
Safe Start (90%) ✓ Fits season (94 days to spare)
Transplant: Apr 17 🍅 Harvest: Jun 19 – Aug 28

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 Gates County

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

Soil pH

Your soil pH (5.2–6.7) is more acidic than Tarragon prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

The clay loam soil in Gates County is excellent for Tarragon — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

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

How to Plant Tarragon

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

Succession Planting Tarragon

4
successive plantings in your 235-day season

Sow every 6.9 weeks. Last sowing by Aug 18 to harvest before frost.

Plant Water Budget

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

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Tarragon

Tarragon needs approximately 0.4 inches of water per week (1.7" per month). Here's how your county's rainfall compares month by month.

Month Tarragon Needs Rainfall You Supplement Action
Jan 3.7" 0" ❄️ Dormant
Feb 3.7" 0" ❄️ Dormant
Mar 1.7" 5" 0" ✅ Rainfall sufficient
Apr 1.7" 3.8" 0" ✅ Rainfall sufficient
May 1.7" 4.3" 0" ✅ Rainfall sufficient
Jun 1.7" 5.1" 0" ✅ Rainfall sufficient
Jul 1.7" 5.6" 0" ✅ Rainfall sufficient
Aug 1.7" 4.4" 0" ✅ Rainfall sufficient
Sep 1.7" 3.6" 0" ✅ Rainfall sufficient
Oct 1.7" 2.9" 0" ✅ Rainfall sufficient
Nov 1.7" 3.4" 0" ✅ Rainfall sufficient
Dec 4.3" 0" ❄️ Dormant

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

Tarragon 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.

Tarragon needs ~1,369 GDD — county provides 4,288 GDD Excellent fit

Tarragon Planting Timeline — Gates County, NC

Tarragon Planting Calendar

Activity When Date Range
Transplant Outdoors April 2 Apr 2 – Apr 16
Harvest June 4 Jun 4 – Aug 13

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.4"/week · Natural rainfall sufficient

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 8a

📆 Growing Season

235 days in Gates County

Growing Tips for Tarragon in Gates County

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

With Gates County's clay soil (27% clay), work in 3-4 inches of compost before planting Tarragon. Avoid tilling when soil is wet to prevent compaction.

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

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Tarragon in Gates County, NC?

Gates County is in Zone 8a with an average last frost of March 26. Plan your Tarragon planting based on this frost date — see the calendar above for exact timing.

What planting zone is Gates County, NC?

Gates County, North Carolina is in USDA Hardiness Zone 8a. The average last spring frost is March 26 and first fall frost is November 16.

🌱

Your Gates County Garden Planner — Free

A 24-page printable planner built for Gates County (Zone 8a). 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 Gates County, NC. Local conditions may vary. Last updated: May 2026.

Sources & credits

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