When to plant Spinach in Alaska

In spring, from Mar 20 – Apr 20 in Juneau to Apr 10 – June 15 in Wasilla.

In fall, from June 1 – Aug 1 in Anchorage to Aug 1 – Sept 1 in Juneau.

USDA's earliest safe spring and latest safe fall planting dates, matched to each place's average frost dates.

Spinach planting dates by place in Alaska
PlaceSpringFall
AnchorageApr 10 – June 15June 1 – Aug 1
FairbanksApr 10 – June 15June 1 – July 15
JuneauMar 20 – Apr 20Aug 1 – Sept 1
WasillaApr 10 – June 15June 1 – Aug 1

Planting dates: USDA Home and Garden Bulletin No. 9 (1967), tables 4 and 5. Frost dates: NOAA U.S. Climate Normals 1991–2020. “—” means the place's frost date is outside the table. The full USDA table for spinach.