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When to Plant Edamame in Alaska

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.

Alaska spans USDA hardiness zones 3a, 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b (with planting data available), so planting dates vary by your location within the state. Click your zone below for the most accurate dates.

Find Your County

Click your county for exact Edamame planting dates based on your local frost dates.

Hover over a county to see details. Click to view planting guide.

Edamame Planting Calendar for Alaska

Zone 3a ~123 day growing season · Full guide →

Last frost: May 15 · First frost: September 15 · 123 day season

Activity When Date Range
Direct Sow May 29 May 29 – Jun 19
Harvest August 14 Aug 14 – Sep 25
Zone 4a ~145 day growing season · Full guide →

Last frost: May 6 · First frost: September 28 · 145 day season

Activity When Date Range
Direct Sow May 20 May 20 – Jun 10
Harvest August 5 Aug 5 – Sep 16
Zone 4b ~155 day growing season · Full guide →

Last frost: May 1 · First frost: October 3 · 155 day season

Activity When Date Range
Direct Sow May 15 May 15 – Jun 5
Harvest July 31 Jul 31 – Sep 11
Zone 5a ~166 day growing season · Full guide →

Last frost: April 25 · First frost: October 8 · 166 day season

Activity When Date Range
Direct Sow May 2 May 2 – May 23
Harvest July 18 Jul 18 – Aug 29
Zone 5b ~178 day growing season · Full guide →

Last frost: April 18 · First frost: October 13 · 178 day season

Activity When Date Range
Direct Sow April 25 Apr 25 – May 16
Harvest July 11 Jul 11 – Aug 22
Zone 6a ~193 day growing season · Full guide →

Last frost: April 10 · First frost: October 20 · 193 day season

Activity When Date Range
Direct Sow April 17 Apr 17 – May 8
Harvest July 3 Jul 3 – Aug 14
Zone 6b ~205 day growing season · Full guide →

Last frost: April 3 · First frost: October 25 · 205 day season

Activity When Date Range
Direct Sow April 10 Apr 10 – May 1
Harvest June 26 Jun 26 – Aug 7
Zone 7a ~221 day growing season · Full guide →

Last frost: March 25 · First frost: November 1 · 221 day season

Activity When Date Range
Direct Sow April 1 Apr 1 – Apr 22
Harvest June 17 Jun 17 – Jul 29
Zone 7b ~235 day growing season · Full guide →

Last frost: March 18 · First frost: November 8 · 235 day season

Activity When Date Range
Direct Sow March 25 Mar 25 – Apr 15
Harvest June 10 Jun 10 – Jul 22

Growing Tips for Alaska

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.

Frequently Asked Questions

When should I plant Edamame in Alaska?

Planting dates for Edamame in Alaska depend on your USDA zone. Alaska spans zones 3a, 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b. Check the planting calendar above for your specific zone's frost dates and planting windows.

What zone is Alaska for planting?

Alaska contains USDA hardiness zones 3a, 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b. Your specific zone depends on your location within the state — northern and higher-elevation areas are in colder zones, while southern and coastal areas are warmer.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals, University Cooperative Extension planting guides. Last updated: April 2026.