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When to Plant Thai Basil in Roane County, WV

Thai basil has a distinctive anise-licorice flavor with sturdy purple stems and small leaves. It is essential in Thai, Vietnamese, and other Southeast Asian cuisines.

Roane County, West Virginia is in USDA Zone 6b. The average last spring frost is April 25 and the first fall frost is October 22, giving you a growing season of approximately 180 days.

At an elevation of 2,210 feet, Roane County receives approximately 42.6 inches of rainfall annually with predominantly silt loam soil. Summer highs average 90°F, providing good warmth for Thai Basil during the growing season.

Roane County, WV (Zone 6b) Moderate season
180 days
Last Spring Frost April 25
180 growing days
First Fall Frost October 22

Roane County Soil Profile

Soil Type

Silt Loam

Soil pH

6.0-7.0

Drainage

Well Drained

Thai Basil Planting Timeline — Roane County, WV

Thai Basil Planting Calendar

Activity When Date Range
Start Indoors March 7 Mar 7 – Mar 21
Transplant Outdoors May 9 May 9 – May 23
Direct Sow May 2 May 2 – May 23
Harvest July 4 Jul 4 – Sep 5

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

50–75 days

🧪 Soil pH

Needs 6–7 · Your soil: N/A

🗺️ USDA Zone

Zone 6b

📆 Growing Season

180 days in Roane County

Growing Tips for Roane County

Start seeds indoors or direct sow after last frost. Thai basil holds up better to heat in cooking than sweet basil. Pinch flowers to prolong leaf production.

Companion Planting

Good Companions

Avoid Planting Near

  • Rue
  • Sage

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Thai Basil in Roane County, WV?

Roane County is in Zone 6b with an average last frost of April 25. Plan your Thai Basil planting based on this frost date — see the calendar above for exact timing.

What planting zone is Roane County, WV?

Roane County, West Virginia is in USDA Hardiness Zone 6b. The average last spring frost is April 25 and first fall frost is October 22.

🌱

Your Roane County Garden Planner — Free

A 22-page printable planner built for Roane County (Zone 6b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

Instant PDF download. No spam, unsubscribe any time.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Roane County, WV. Local conditions may vary. Last updated: June 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.