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When to Plant Thai Basil in Valley County, NE

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.

Valley County, Nebraska is in USDA Zone 5b. The average last spring frost is May 9 and the first fall frost is October 5, giving you a growing season of approximately 149 days.

At an elevation of 982 feet, Valley County receives approximately 21.7 inches of rainfall annually with predominantly loam soil. Summer highs average 82°F, so choose short-season varieties of Thai Basil to ensure they mature before fall.

Valley County, NE (Zone 5b) Short season
149 days
Last Spring Frost May 9
149 growing days
First Fall Frost October 5

Valley County Soil Profile

Soil Type

Loam

Soil pH

6.0-7.0

Drainage

Well Drained

Thai Basil Planting Timeline — Valley County, NE

Thai Basil Planting Calendar

Activity When Date Range
Start Indoors March 21 Mar 21 – Apr 4
Transplant Outdoors May 23 May 23 – Jun 6
Direct Sow May 16 May 16 – Jun 6
Harvest July 18 Jul 18 – Sep 19

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

Month-by-Month Timeline

MonthActivities
January
February
March Start Indoors
April Start Indoors
May Transplant Outdoors Direct Sow
June Transplant Outdoors Direct Sow
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 5b

📆 Growing Season

149 days in Valley County

Growing Tips for Valley 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 Valley County, NE?

Valley County is in Zone 5b with an average last frost of May 9. Plan your Thai Basil planting based on this frost date — see the calendar above for exact timing.

What planting zone is Valley County, NE?

Valley County, Nebraska is in USDA Hardiness Zone 5b. The average last spring frost is May 9 and first fall frost is October 5.

🌱

Your Valley County Garden Planner — Free

A 22-page printable planner built for Valley County (Zone 5b). 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 Valley County, NE. Local conditions may vary. Last updated: July 2026.

Sources & credits

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