Crop dates by place

Onions, bulb Planting Dates by State and Region

Published onions, bulb planting windows for 3 places, with the source and the caveats you need before you use them.

Onions, bulb windows by place
Place	Planting	Harvest
Central North Carolina	Planting: early Jan to end of Mar; early Aug to end of Dec (direct seed); early Mar to end of Mar (bulbs)
Eastern North Carolina	Planting: early Jan to end of Mar; early Aug to end of Dec (direct seed); early Mar to end of Mar (bulbs)
Western North Carolina	Planting: mid Feb to end of Mar; early Aug to end of Aug (direct seed); early Mar to end of Mar (bulbs)

Calendar view

Onions, bulb calendar by place
Item	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Central North Carolina planting	Timing in table above
Eastern North Carolina planting	Timing in table above
Western North Carolina planting	Timing in table above

Frost-date caveat: ranges blur real differences inside a state or region. Use them to plan, then fit them to your last frost date, soil temperature and field conditions.

Last reviewed: November 2026. Source: NC State Extension - Central North Carolina Planting Calendar for Annual Vegetables, Fruits, and Herbs.