When to Plant Tarragon in Fannin County, TX
This month in Fannin County, Texas
May rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Fannin County, Texas.
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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.
Before June arrives, get these ready
- 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.
Fannin County, Texas is in USDA Zone 8a. The average last spring frost is March 16 and the first fall frost is November 15, giving you a growing season of approximately 244 days.
At an elevation of 282 feet, Fannin County receives approximately 63.8 inches of rainfall annually with predominantly loam soil. Summer highs average 88°F, providing good warmth for Tarragon during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Tarragon root diseases.
Fannin County Soil Profile
Soil Type
Loam
Soil pH
6.3-7.8
Drainage
Well Drained
Plant 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 Fannin County
How your county's soil matches Tarragon's growing requirements.
Soil pH
Your soil pH (6.3–7.8) overlaps with Tarragon's range (6.0–7.5), though not a perfect match.
Soil Texture
The loam soil in Fannin County is excellent for Tarragon — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (2.2%). Annual compost additions will help Tarragon.
How to Plant Tarragon
Succession Planting Tarragon
Sow every 6.9 weeks. Last sowing by Aug 17 to harvest before frost.
Plant 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 | — | 1.4" | 0" | ❄️ Dormant |
| Feb | — | 1.9" | 0" | ❄️ Dormant |
| Mar | 1.7" | 4.3" | 0" | ✅ Rainfall sufficient |
| Apr | 1.7" | 6.3" | 0" | ✅ Rainfall sufficient |
| May | 1.7" | 8.7" | 0" | ✅ Rainfall sufficient |
| Jun | 1.7" | 11.1" | 0" | ✅ Rainfall sufficient |
| Jul | 1.7" | 7.7" | 0" | ✅ Rainfall sufficient |
| Aug | 1.7" | 7.9" | 0" | ✅ Rainfall sufficient |
| Sep | 1.7" | 6.2" | 0" | ✅ Rainfall sufficient |
| Oct | 1.7" | 4.3" | 0" | ✅ Rainfall sufficient |
| Nov | 1.7" | 2.1" | 0" | ✅ Rainfall sufficient |
| Dec | — | 1.8" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Fannin 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 — Fannin County, TX
Tarragon Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | March 23 | Mar 23 – Apr 6 |
| Harvest | May 25 | May 25 – Aug 3 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Transplant Outdoors |
| April | Transplant Outdoors |
| May | Harvest |
| 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 8a
📆 Growing Season
244 days in Fannin County
Growing Tips for Tarragon in Fannin County
Direct sow Tarragon outdoors after March 16 in Fannin 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.
With 64" of annual rainfall in Fannin County, ensure good drainage for Tarragon — 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
Check more plant combinations with our Companion Planting Checker →
Tarragon in Other Locations
Frequently Asked Questions
When should I plant Tarragon in Fannin County, TX?
Fannin County is in Zone 8a with an average last frost of March 16. Plan your Tarragon planting based on this frost date — see the calendar above for exact timing.
What planting zone is Fannin County, TX?
Fannin County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 16 and first fall frost is November 15.
Your Fannin County Garden Planner — Free
A 24-page printable planner built for Fannin 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.