When to plant Brussels sprouts in Alaska

In spring, from Apr 1 – May 1 in Juneau to May 1 – June 15 in Wasilla.

In fall, from May 1 – June 15 in Anchorage to June 15 – July 15 in Juneau.

Dates are for setting out plants. USDA's earliest safe spring and latest safe fall planting dates, matched to each place's average frost dates.

Brussels sprouts planting dates by place in Alaska
PlaceSpringFall
AnchorageMay 1 – June 15May 1 – June 15
FairbanksMay 1 – June 15May 1 – June 1
JuneauApr 1 – May 1June 15 – July 15
WasillaMay 1 – June 15May 1 – June 15

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 brussels sprouts.