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Gardening in zone 6b

In USDA zone 6b, the coldest winter night averages -5 to 0°F. The typical last spring frost is around Apr 23 and the first fall frost around Oct 22.

A zone tells you about winter cold, not about timing: across zone 6b, last spring frosts range from about Apr 10 to May 5, and first fall frosts from Oct 9 to Oct 29. Plan from your own frost dates where you can.

Zone 6b is common in: Pennsylvania, Ohio, Missouri, Kansas, West Virginia, New York, Illinois, Massachusetts, Indiana, Michigan, Connecticut, Kentucky

Zone 6b planting schedule

Dates below count from the zone’s typical frost dates, so treat them as a starting point. For dates set to your exact ZIP code, use the planting calendar.

CropStart indoorsPlant or sow outsideFall planting
TomatoAround Mar 12Around May 7—
PepperAround Feb 26Around May 7—
EggplantAround Feb 26Around May 7—
BasilAround Mar 12Around May 7—
CucumberAround Apr 2Around May 7—
ZucchiniAround Apr 2Around Apr 30—
Butternut SquashAround Apr 2Around Apr 30—
WatermelonAround Apr 2Around May 7—
Corn—Around Apr 23—
Green Bean—Around Apr 30—
Pea—Around Mar 12Around Aug 13
Lettuce—Around Mar 26Around Sep 3
Spinach—Around Mar 12Around Aug 27
KaleAround Mar 12Around Apr 23Around Aug 13
BroccoliAround Feb 26Around Apr 9Around Jul 16
CabbageAround Mar 12Around Apr 23Around Jul 16
Carrot—Around Apr 2Around Aug 6
Beet—Around Mar 26Around Aug 13
Radish—Around Mar 26Around Sep 10
OnionAround Feb 12Around Apr 2—
Potato—Around Apr 9—
Garlic——Around Nov 5

Zones: 2023 USDA Plant Hardiness Zone Map. Frost dates: NOAA NCEI U.S. Climate Normals 1991–2020 (50% chance of 32°F), middle value across the zone's ZIP codes.

Other zones: 3b · 4a · 4b · 5a · 5b · 6a · 7a · 7b · 8a · 8b · 9a · 9b · 10a