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When to plant Edamame in Kittson County, MN

Plant Edamame in Kittson County during the brief May 28–June 18 window. With 139 frost-free days, fall plantings can't mature before September 30.

When to Plant Edamame in Kittson County, MN

Edamame are soybeans harvested at the immature green stage for a sweet, nutty snack. They are high in protein and easy to grow in warm climates.

Kittson County, Minnesota is in USDA Zone 3b. The average last spring frost is May 14 and the first fall frost is September 30, giving you a growing season of approximately 139 days.

At an elevation of 778 feet, Kittson County receives approximately 40.2 inches of rainfall annually with predominantly silt loam soil. Summer highs average 78°F, so choose short-season varieties of Edamame to ensure they mature before fall.

Kittson County, MN (Zone 3b) Short season
139 days
Last Spring Frost May 14
139 growing days
First Fall Frost September 30

Kittson County Soil Profile

Soil Type

Silt Loam

Soil pH

6.0-7.0

Drainage

Well Drained

Edamame Planting Timeline — Kittson County, MN

Edamame Planting Calendar

Activity When Date Range
Direct Sow May 28 May 28 – Jun 18
Harvest August 13 Aug 13 – Sep 24

Plant 1" deep · 15" apart · Rows 24" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

75–100 days

🧪 Soil pH

Needs 6–7 · Your soil: N/A

🗺️ USDA Zone

Zone 3b

📆 Growing Season

139 days in Kittson County

Growing Tips for Kittson County

Direct sow after soil is warm. Do not over-fertilize with nitrogen. Harvest when pods are plump and bright green but before they start to yellow. Steam or boil pods before eating.

Companion Planting

Good Companions

Avoid Planting Near

  • Onion
  • Garlic

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Edamame in Kittson County, MN?

Kittson County is in Zone 3b with an average last frost of May 14. Plan your Edamame planting based on this frost date — see the calendar above for exact timing.

What planting zone is Kittson County, MN?

Kittson County, Minnesota is in USDA Hardiness Zone 3b. The average last spring frost is May 14 and first fall frost is September 30.

When should I plant Edamame in Kittson County, MN?

In Kittson County, MN, plant Edamame after the last frost (around May 14) and before the first frost (around September 30). Best results when soil holds above 50°F.

What growing zone is Kittson County, MN for Edamame?

Kittson County sits in USDA Zone 3b. Edamame grows reliably in zones 3a through 10b, so it's a good fit here.

Can Edamame grow in Kittson County's climate?

Yes — Edamame grows well in Kittson County's temperate climate. Kittson County averages a 139-day frost-free season, with last frost around May 14 and first frost around September 30.

🌱

Your Kittson County Garden Planner — Free

A 22-page printable planner built for Kittson County (Zone 3b). 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 Kittson County, MN. Local conditions may vary. Last updated: June 2026.

Sources & credits

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