When to Plant Onions in Nebraska
Nebraska spans USDA hardiness 5a to 6a (zones 5a to 6a on this page). Plant onions by your local frost date, not the calendar — pick your zone below for exact start-indoors, transplant, and harvest dates.
Jump to: Zone 5a · Zone 5b · Zone 6a
Onions planting calendar for Nebraska, Zone 5a
Average last spring frost
May 5
Average first fall frost
October 1
Direct sow
Feb 10
Projected first harvest
May 31
Most onions mature in about 90 to 110 days depending on the variety. Full zone 5 guide (both 5a and 5b) →
Onions planting calendar for Nebraska, Zone 5b
Average last spring frost
April 30
Average first fall frost
October 5
Direct sow
Feb 5
Projected first harvest
May 26
Most onions mature in about 90 to 110 days depending on the variety. Full zone 5 guide (both 5a and 5b) →
Onions planting calendar for Nebraska, Zone 6a
Average last spring frost
April 25
Average first fall frost
October 10
Direct sow
Jan 31
Projected first harvest
May 21
Most onions mature in about 90 to 110 days depending on the variety. Full zone 6 guide (both 6a and 6b) →
Not sure which half-zone you're in? Set your ZIP in HomeSown for dates tuned to your exact location.
Varieties to grow
8 varieties of onions in the HomeSown library. Tap any for its full grow guide.
Common problems with onions
What to watch for, with identification and treatment for each
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