A month-by-month look at what Ohio gardeners can still plant, harvest, and prepare once the fall frost window has passed.

Ohio State University Extension’s Columbus figures set the frost window that determines which crops still have time to mature if planted in August.

Ohio’s April garden sits before the last frost, so cold-hardy crops go in now while tomatoes and peppers wait for warmer soil in May.

May in Ohio splits into a frost-risk half and a safe-to-plant half, and this page sorts hardy crops, warm-season transplants, and the jobs that can’t wait.

December in Ohio means dormant plantings and cold frames, not new sowing. Here’s what OSU Extension’s frost data says is still possible.

September in Ohio means quick fall greens, garlic bed prep, and harvesting the last of the tomatoes before the first fall frost window arrives.

A month-by-month look at what actually goes into Ohio gardens in January, from garlic and bare-root stock to seed starting for onions and leeks.

Ohio’s March planting window sits weeks before the last frost, so most work is prep, cold frames, and seed starting rather than outdoor sowing.

A month-by-month look at what to plant, start, harvest and skip in Ohio gardens during June, based on OSU Extension frost data.

Explains what to direct-sow, transplant and start indoors in Ohio in July, using OSU Extension’s frost windows to time fall crops correctly.