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When to plant Tarragon in Jackson County, GA

Jackson County sits in cold Zone 8a. Plant Tarragon April 2–April 16 for the single annual harvest; the November 10 first frost closes the window.

When to Plant Tarragon in Jackson County, GA

Jackson County, Georgia Zone 8a July

Top priorities for Jackson County, Georgia gardeners in July

July is a pivotal month for Jackson County, Georgia 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 10
Soil temp (4") 87°F
Watering Low
Pest pressure High
Daylight 14.1 hrs
  1. Basket week: tarragon

    This is the payoff month. Bring a basket, bring a friend, and get into the beds.

A few tasks this July that'll pay off in August
  • 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.

Jackson County, Georgia is in USDA Zone 8a. The average last spring frost is March 26 and the first fall frost is November 10, giving you a growing season of approximately 229 days.

At an elevation of 225 feet, Jackson County receives approximately 55 inches of rainfall annually with predominantly clay loam soil. Summer highs average 93°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. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Tarragon root diseases.

Jackson County, GA (Zone 8a) Long season
229 days
Last Spring Frost March 26
229 growing days
First Fall Frost November 10

Jackson County Soil Profile

Soil Type

Clay Loam

Soil pH

5.6-6.2

Drainage

Well Drained

Tarragon Planting Risk Windows

Early Start (70% safe) ✓ Fits season (88 days to spare)
Transplant: Mar 25 🍅 Harvest: May 27 – Aug 5
Recommended (50%) ✓ Fits season (89 days to spare)
Transplant: Apr 2 🍅 Harvest: Jun 4 – Aug 13
Safe Start (90%) ✓ Fits season (88 days to spare)
Transplant: Apr 23 🍅 Harvest: Jun 25 – Sep 3

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 Jackson County

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

Soil pH

Your soil pH (5.6–6.2) is more acidic than Tarragon prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.9%). 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 229-day season

Sow every 6.9 weeks. Last sowing by Aug 12 to harvest before frost.

Tarragon Water Budget

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

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 5" 0" ❄️ Dormant
Feb 4.2" 0" ❄️ Dormant
Mar 1.7" 5.4" 0" ✅ Rainfall sufficient
Apr 1.7" 4" 0" ✅ Rainfall sufficient
May 1.7" 4" 0" ✅ Rainfall sufficient
Jun 1.7" 4.9" 0" ✅ Rainfall sufficient
Jul 1.7" 6.1" 0" ✅ Rainfall sufficient
Aug 1.7" 4.9" 0" ✅ Rainfall sufficient
Sep 1.7" 4.3" 0" ✅ Rainfall sufficient
Oct 1.7" 3.7" 0" ✅ Rainfall sufficient
Nov 1.7" 4.6" 0" ✅ Rainfall sufficient
Dec 3.9" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Jackson 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 ~1,481 GDD — county provides 4,522 GDD Excellent fit

Tarragon Planting Timeline — Jackson County, GA

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

229 days in Jackson County

Growing Tips for Tarragon in Jackson County

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

With Jackson County's clay soil (28% 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 Jackson County, GA?

Jackson 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 Jackson County, GA?

Jackson County, Georgia is in USDA Hardiness Zone 8a. The average last spring frost is March 26 and first fall frost is November 10.

When should I plant Tarragon in Jackson County, GA?

In Jackson County, GA, plant Tarragon after the last frost (around March 26) and before the first frost (around November 10). Best results when soil holds above 50°F.

What growing zone is Jackson County, GA for Tarragon?

Jackson County sits in USDA Zone 8a. Tarragon grows reliably in zones 4a through 9b, so it's a good fit here.

Can Tarragon grow in Jackson County's climate?

Yes — Tarragon grows well in Jackson County's temperate climate. Jackson County averages a 229-day frost-free season, with last frost around March 26 and first frost around November 10.

🌱

Your Jackson County Garden Planner — Free

A 22-page printable planner built for Jackson 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 Jackson County, GA. Local conditions may vary. Last updated: July 2026.

Sources & credits

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