When to plant Tarragon in Trigg County, KY
Plant Tarragon in Trigg County, between April 12 and April 26 — the only viable window. Zone 7a's short season (208 frost-free days) rules out a fall crop.
When to Plant Tarragon in Trigg County, KY
What to do in June
We've pulled the most time-sensitive tasks for Trigg County, Kentucky this June and put them front and centre. Tackle them in order.
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Harvest tarragon as they ripen
If you can't use it all right away, check the food-preservation section of your planner.
A few tasks this June that'll pay off in July
- First harvests: tarragon
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.
Trigg County, Kentucky is in USDA Zone 7a. The average last spring frost is April 5 and the first fall frost is October 30, giving you a growing season of approximately 208 days.
At an elevation of 1,825 feet, Trigg County receives approximately 48.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88°F, providing good warmth for Tarragon during the growing season.
Trigg County Soil Profile
Soil Type
Silt Loam
Soil pH
5.2-6.8
Drainage
Well Drained
Tarragon Planting Risk Windows
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 Trigg County
How your county's soil matches Tarragon's growing requirements.
Soil pH
Your soil pH (5.2–6.8) overlaps with Tarragon's range (6.0–7.5), though not a perfect match.
Soil Texture
The silt loam soil in Trigg 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
Succession Planting Tarragon
Sow every 6.9 weeks. Last sowing by Aug 01 to harvest before frost.
Tarragon Water Budget
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 | — | 4" | 0" | ❄️ Dormant |
| Mar | — | 4.7" | 0" | ❄️ Dormant |
| Apr | 1.7" | 3.5" | 0" | ✅ Rainfall sufficient |
| May | 1.7" | 4.2" | 0" | ✅ Rainfall sufficient |
| Jun | 1.7" | 4" | 0" | ✅ Rainfall sufficient |
| Jul | 1.7" | 5.7" | 0" | ✅ Rainfall sufficient |
| Aug | 1.7" | 4.3" | 0" | ✅ Rainfall sufficient |
| Sep | 1.7" | 3.9" | 0" | ✅ Rainfall sufficient |
| Oct | 1.7" | 3.7" | 0" | ✅ Rainfall sufficient |
| Nov | — | 3.4" | 0" | ❄️ Dormant |
| Dec | — | 3.7" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Apr–Oct in Trigg 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 Planting Timeline — Trigg County, KY
Tarragon Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | April 12 | Apr 12 – Apr 26 |
| Harvest | June 14 | Jun 14 – Aug 23 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| 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: acceptable
🗺️ USDA Zone
Zone 7a
📆 Growing Season
208 days in Trigg County
Growing Tips for Tarragon in Trigg County
Direct sow Tarragon outdoors after April 05 in Trigg County when soil has warmed and frost danger has passed.
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 →
Tarragon in Other Locations
Frequently Asked Questions
When should I plant Tarragon in Trigg County, KY?
Trigg County is in Zone 7a with an average last frost of April 5. Plan your Tarragon planting based on this frost date — see the calendar above for exact timing.
What planting zone is Trigg County, KY?
Trigg County, Kentucky is in USDA Hardiness Zone 7a. The average last spring frost is April 5 and first fall frost is October 30.
When should I plant Tarragon in Trigg County, KY?
In Trigg County, KY, plant Tarragon after the last frost (around April 5) and before the first frost (around October 30). Best results when soil holds above 50°F.
What growing zone is Trigg County, KY for Tarragon?
Trigg County sits in USDA Zone 7a. Tarragon grows reliably in zones 4a through 9b, so it's a good fit here.
Can Tarragon grow in Trigg County's climate?
Yes — Tarragon grows well in Trigg County's temperate climate. Trigg County averages a 208-day frost-free season, with last frost around April 5 and first frost around October 30.
Your Trigg County Garden Planner — Free
A 22-page printable planner built for Trigg County (Zone 7a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.