When to Plant Onions in Alabama
Alabama spans USDA hardiness 7b to 9b (zones 7b to 9b 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 7b · Zone 8a · Zone 8b · Zone 9a · Zone 9b
Onions planting calendar for Alabama, Zone 7b
Average last spring frost
April 10
Average first fall frost
October 30
Direct sow
Jan 16
Projected first harvest
May 6
Most onions mature in about 90 to 110 days depending on the variety. Full zone 7 guide (both 7a and 7b) →
Onions planting calendar for Alabama, Zone 8a
Average last spring frost
April 1
Average first fall frost
November 10
Direct sow
Jan 7
Projected first harvest
Apr 27
Most onions mature in about 90 to 110 days depending on the variety. Full zone 8 guide (both 8a and 8b) →
Onions planting calendar for Alabama, Zone 8b
Average last spring frost
March 20
Average first fall frost
November 20
Direct sow
Dec 26
Projected first harvest
Apr 15
Most onions mature in about 90 to 110 days depending on the variety. Full zone 8 guide (both 8a and 8b) →
Onions planting calendar for Alabama, Zone 9a
Average last spring frost
March 1
Average first fall frost
December 1
Direct sow
Dec 7
Projected first harvest
Mar 27
Most onions mature in about 90 to 110 days depending on the variety. Full zone 9 guide (both 9a and 9b) →
Onions planting calendar for Alabama, Zone 9b
Average last spring frost
February 15
Average first fall frost
December 15
Direct sow
Nov 23
Projected first harvest
Mar 13
Most onions mature in about 90 to 110 days depending on the variety. Full zone 9 guide (both 9a and 9b) →
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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