When to Plant Tarragon in Limestone County, TX
What to do in May
Each item below is timed to Limestone County, Texas's frost dates and soil temperatures. Skip nothing, stress about nothing.
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Collect tarragon at their peak
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.
Limestone County, Texas is in USDA Zone 8b. The average last spring frost is March 12 and the first fall frost is November 14, giving you a growing season of approximately 247 days.
At an elevation of 214 feet, Limestone County receives approximately 69.7 inches of rainfall annually with predominantly clay 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.
Limestone County Soil Profile
Soil Type
Clay
Soil pH
7.1-7.7
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 Limestone County
How your county's soil matches Tarragon's growing requirements.
Soil pH
Your soil pH (7.1–7.7) overlaps with Tarragon's range (6.0–7.5), though not a perfect match.
Soil Texture
Heavy clay soil (45% clay) in Limestone County compacts easily and drains slowly. Amend with compost and avoid working soil when wet.
Organic Matter
Organic matter is moderate (2.8%). Annual compost additions will help Tarragon.
How to Plant Tarragon
Succession Planting Tarragon
Sow every 6.9 weeks. Last sowing by Aug 16 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 | — | 1.8" | 0" | ❄️ Dormant |
| Feb | — | 2.5" | 0" | ❄️ Dormant |
| Mar | 1.7" | 4.9" | 0" | ✅ Rainfall sufficient |
| Apr | 1.7" | 6.9" | 0" | ✅ Rainfall sufficient |
| May | 1.7" | 10.6" | 0" | ✅ Rainfall sufficient |
| Jun | 1.7" | 12.1" | 0" | ✅ Rainfall sufficient |
| Jul | 1.7" | 8.9" | 0" | ✅ Rainfall sufficient |
| Aug | 1.7" | 8.2" | 0" | ✅ Rainfall sufficient |
| Sep | 1.7" | 6.2" | 0" | ✅ Rainfall sufficient |
| Oct | 1.7" | 3.8" | 0" | ✅ Rainfall sufficient |
| Nov | 1.7" | 2" | 0" | ✅ Rainfall sufficient |
| Dec | — | 1.8" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Limestone 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 — Limestone County, TX
Tarragon Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | March 19 | Mar 19 – Apr 2 |
| Harvest | May 21 | May 21 – Jul 30 |
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 | — |
| 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 8b
📆 Growing Season
247 days in Limestone County
Growing Tips for Tarragon in Limestone County
Direct sow Tarragon outdoors after March 12 in Limestone County when soil has warmed and frost danger has passed.
With Limestone County's clay soil (45% 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.
With 70" of annual rainfall in Limestone 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 Limestone County, TX?
Limestone County is in Zone 8b with an average last frost of March 12. Plan your Tarragon planting based on this frost date — see the calendar above for exact timing.
What planting zone is Limestone County, TX?
Limestone County, Texas is in USDA Hardiness Zone 8b. The average last spring frost is March 12 and first fall frost is November 14.
Your Limestone County Garden Planner — Free
A 24-page printable planner built for Limestone County (Zone 8b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.