When to plant garlic in Cincinnati, Ohio

November 1 – November 8

Fall planting · typical Cincinnati year

Climate basis: NOAA station Cincinnati Lunken AP, OH (USW00093812), 5 mi (7 km) from downtown Cincinnati (ZCTA 45202 centroid), elevation 490 ft, on the 1991–2020 climate normals. Plant garlic cloves from approximately the dates above, anchored to the median first fall 32°F freeze (October 25). One year in ten still freezes after May 3.

Last spring freezeApril 161-in-10 after May 3
First fall freezeOctober 251-in-10 before Oct 12
Frost-free season190 daysmedian at 32°F
Hard freeze, 28°Apr 2Nov 4kills even hardy greens
USDA zone6b-5 to 0°F winter low not frost timing

The Cincinnati year

Fall plantingNov 1 – Nov 8
  • indoors under lights
  • in the garden
  • frost-free season
  • 1-in-10 years still freeze to May 3
Garlic in Cincinnati · freeze context from Cincinnati Lunken AP, OH, 1991–2020 normals.

Every method, with its sources

Fall planting

Nov 1 – Nov 8

Minnesota: plant cloves in the fall, usually one or two weeks AFTER the first killing frost (before the ground freezes). Harvest is the following summer. Anchored to the median first fall freeze (Oct 25). University of Minnesota Extension

Start seeds indoors

Not calculated

Garlic is grown from cloves planted in fall, not from seed or spring transplants.

Transplant outdoors

Not calculated

The cited extension guides do not time an outdoor transplanting window for this crop.

Direct-sow outdoors

Not calculated

The cited extension guides do not time direct sowing for this crop.

Variety assumption: Overwinters in the ground; bulbs are harvested the following summer.

These windows describe typical years (1991–2020 climate normals), not this year's forecast. Freezes happen outside them — especially in frost pockets, valleys, and urban edges. Watch the forecast before committing tender plants.

This week, not a typical year:
Crop rule sources (1)

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