Alaska · zones 3a–8a
When to plant garlic in Alaska.
Alaska's window for garlic runs on the fall side of the season. A second, fall sowing fits Aug 15 to Sep 30. Dates below are state medians; your ZIP code shifts them by days to weeks.
The 2026 windows
Garlic dates for a typical Alaska season.
Fall round
Aug 15 to Sep 30
Counted back from the ~Sep 15 first frost.
Harvest
~240 days later
~0.2 lb per plant over ~1 weeks.
Alaska spans more than one climate: Zone 3 is the most common zone, but the state runs 3a to 8a. That's why the planner works from your ZIP code's frost dates, not your zone — mountain and coastal gardens in the same state can be three weeks apart.