When to plant Onion sets in Vermont

In spring, from Mar 10 – Apr 10 in Burlington to Apr 10 – May 1 in Rutland.

In fall: USDA's 1967 table lists onion sets as generally spring-planted in every place here. Newer advice from your state's extension service may differ.

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

Onion sets planting dates by place in Vermont
Place	Spring
Burlington	Mar 10 – Apr 10
Essex Junction	Mar 10 – Apr 10
Rutland	Apr 10 – May 1
South Burlington	Mar 10 – Apr 10

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 onion sets.