DibbleWhen to plant garlic in Zone 3
In Zone 3, the last spring frost usually passes around May 15 and the first fall frost arrives around September 15, leaving about 123 frost-free days. The windows below are computed from those frost dates, with the same math the Dibble app uses.
Short, cool season. Start most warm crops indoors and protect from late frosts.
Planting windows for garlic in Zone 3
| Task | Window |
|---|---|
| Direct sow | Aug 18 to Sep 1 |
| Estimated harvest | Apr 15 to Apr 29 |
The harvest estimate counts 240 days to maturity, then a picking window of about 14 days. These windows use typical frost dates for Zone 3; Dibble pins them to your exact ZIP code.
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How to grow garlic
Plant individual cloves 4-6 weeks before your first fall frost, pointy end up. Mulch for winter and harvest the following summer when lower leaves brown.
Companion plants
Good neighbors for Garlic:
Better kept apart:
Garlic in nearby zones
Keep exploring
Garlic: the full growing guide · The Zone 3 planting calendar · Every crop and zone
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Dates are estimates based on typical frost dates for the zone. Your yard has its own microclimate, so use them as a starting point and adjust as you learn your space.