State agricultural overview

Alaska crop calendar.

Zone 4a
Range 1a to 7a
105-day season
Last frost May 25
First frost September 5

13 primary crops with planting windows for Alaska. Calendar timing is anchored to 4a dominant hardiness zone and a 105-day growing season — verify against University of Alaska Cooperative Extension Service for variety- and county-specific guidance.

Row Crop · Alaska

Sunflowers
primary
Spring: June 1 – June 29
Corn
secondary
Spring: May 25 – June 15
Soybeans
secondary
Spring: June 8 – June 29
Winter Wheat
secondary
Fall: August 29 – September 19
Grain Sorghum
limited
Spring: June 15 – July 13
Cotton
trial
Spring: June 8 – June 29

Vegetables · Alaska

Cucumbers
primary
Spring: June 8 – July 13
Peppers
primary
Spring: June 15 – July 6
Potatoes
primary
Spring: May 11 – June 1
Fall: June 22 – July 7
Pumpkins
primary
Spring: June 15 – July 13
Sweet Corn
primary
Spring: May 25 – June 29
Tomatoes
primary
Spring: June 8 – June 29

Forages · Alaska

Alfalfa
primary
Spring: May 18 – June 15
Fall: July 7 – July 22
Clover
primary
Spring: May 4 – June 1
Fall: July 7 – July 22

Cover Crops · Alaska

Brassicas
primary
Fall: June 22 – July 7
Buckwheat
primary
Spring: July 20 – August 17
Cereal Oats
primary
Spring: May 18 – June 15
Fall: July 7 – July 22
Winter Rye
primary
Fall: August 29 – September 19

Frost & extension reference

Alaska climate anchors.

Last frost

May 25

First frost

September 5

Growing season

105 days

Hardiness zone

Alaska county-level frost dates →University of Alaska Cooperative Extension Service →

Alaska planting timing. Live alerts.

Bield: Farm ties weather and soil-temperature stations in your county to crop planting thresholds — get notified the day soil temp clears your target window.

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