When to Plant Garlic in Zone 3

Allium sativum

Last updated: Apr 25, 2026 · Sources: USDA, NOAA, Cooperative Extension

Zone 3 Planting Schedule

Direct Sow
Aug 4
Directly in garden bed
First Harvest
Jul 14
180–270 days after planting
Season Ends
Aug 13
Before first frost (Sep 15)
Quick Facts
Sunlight ☀️ Full Sun
Water Needs 💧 Low
Spacing 6 inches apart
Planting Depth 2.0 inch
Min Soil Temp 32°F
Germination 7–14 days
Days to Maturity 180–270 days
Frost Tolerance Heavy frost tolerance
Soil pH 6.0–7.0
Difficulty Easy
Recommended for Zone 3
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Companion Planting

Companion planting improves growth, deters pests, and makes better use of garden space.

✓ Good Companions

✗ Avoid Nearby

Beans Peas

Garlic Schedule — All Zones

ZoneStart IndoorsTransplant Direct SowHarvest StartHarvest End
Zone 3 Aug 4 Jul 14 Aug 13
Zone 4 Aug 14 Jul 9 Aug 8
Zone 5 Aug 24 Jun 29 Jul 29
Zone 6 Sep 3 Jun 14 Jul 14
Zone 7 Sep 13 Jun 4 Jul 4
Zone 8 Sep 24 May 19 Jun 18
Zone 9 Oct 14 Apr 29 May 29
Zone 10 Oct 29 Apr 11 May 11
📚 Data Sources
Frost dates: NOAA Climate Normals 1991–2020, National Centers for Environmental Information.
Hardiness zones: USDA Plant Hardiness Zone Map, Agricultural Research Service.
Growing requirements: Cooperative Extension Services — NC State, Penn State, University of Florida IFAS.
Companion planting: Cornell University Cooperative Extension.
Data compiled from public agricultural sources. Always verify with your local extension office for micro-climate adjustments.