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When to plant Thai Basil in Becker County, MN

Plant Thai Basil in Becker County, between May 22 and June 12 — the only viable window. Zone 4a's short season (133 frost-free days) rules out a fall crop.

When to Plant Thai Basil in Becker County, MN

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.

Becker County, Minnesota is in USDA Zone 4a. The average last spring frost is May 15 and the first fall frost is September 25, giving you a growing season of approximately 133 days.

At an elevation of 729 feet, Becker County receives approximately 35.2 inches of rainfall annually with predominantly silt loam soil. Summer highs average 78°F, so choose short-season varieties of Thai Basil to ensure they mature before fall.

Becker County, MN (Zone 4a) Short season
133 days
Last Spring Frost May 15
133 growing days
First Fall Frost September 25

Becker County Soil Profile

Soil Type

Silt Loam

Soil pH

6.1-7.1

Drainage

Well Drained

Monthly Watering Guide for Thai Basil

Thai Basil needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Thai Basil Needs Rainfall You Supplement Action
Jan 1.6" 0" ❄️ Dormant
Feb 1.4" 0" ❄️ Dormant
Mar 2.4" 0" ❄️ Dormant
Apr 3.1" 0" ❄️ Dormant
May 4.3" 4.5" 0" ✅ Rainfall sufficient
Jun 4.3" 3.9" 0.4" 💧 Light watering
Jul 4.3" 4.2" 0.1" 💧 Light watering
Aug 4.3" 3.7" 0.6" 💧 Light watering
Sep 4.3" 3.4" 0.9" 💧 Light watering
Oct 2.5" 0" ❄️ Dormant
Nov 2.5" 0" ❄️ Dormant
Dec 2.1" 0" ❄️ Dormant

Water needs are for active growing months only (May–Sep in Becker County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Thai Basil Planting Timeline — Becker County, MN

Thai Basil Planting Calendar

Activity When Date Range
Start Indoors March 20 Mar 20 – Apr 3
Transplant Outdoors June 5 Jun 5 – Jun 19
Direct Sow May 22 May 22 – Jun 12
Harvest July 31 Jul 31 – Oct 2

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

Month-by-Month Timeline

MonthActivities
January
February
March Start Indoors
April Start Indoors
May Direct Sow
June Transplant Outdoors Direct Sow
July Harvest
August Harvest
September Harvest
October Harvest
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 4a

📆 Growing Season

133 days in Becker County

Growing Tips for Becker 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 Becker County, MN?

Becker County is in Zone 4a with an average last frost of May 15. Plan your Thai Basil planting based on this frost date — see the calendar above for exact timing.

What planting zone is Becker County, MN?

Becker County, Minnesota is in USDA Hardiness Zone 4a. The average last spring frost is May 15 and first fall frost is September 25.

When should I plant Thai Basil in Becker County, MN?

In Becker County, MN, plant Thai Basil after the last frost (around May 15) and before the first frost (around September 25). Best results when soil holds above 50°F.

What growing zone is Becker County, MN for Thai Basil?

Becker County sits in USDA Zone 4a. Thai Basil grows reliably in zones 4a through 11b, so it's a good fit here.

Can Thai Basil grow in Becker County's climate?

Yes — Thai Basil grows well in Becker County's temperate climate. Becker County averages a 133-day frost-free season, with last frost around May 15 and first frost around September 25.

🌱

Your Becker County Garden Planner — Free

A 22-page printable planner built for Becker County (Zone 4a). 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 Becker County, MN. Local conditions may vary. Last updated: July 2026.

Sources & credits

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