Winter overseeding grass seed
I would like to know your opinion of overseeding grass seed during the winter months. I live in Cincinnati, Ohio. 45218. If you are positive on this thought process, can you suggest a seed type and schedule. Like once a month, time it right before a snowfall or a significant freeze/thaw etc
Dormant seeding is the common term for over seeding lawns in late fall to early spring while soil temperatures are too cold for grass seed to germinate. In the mid-west that's usually mid-November thru March when soil temperatures are below 50 degrees. Harsh winter weather will not harm dormant grass seeds.
If you missed the fall over seeding window, dormant seeding helps to eliminate bare spots and thickens turf to fight spring weeds.
I would recommend talking with your County Extension Office for a seed recommendation for your region and growing zone.
This link will help you locate the office nearest you.
You can also talk with a local garden center or nursery to check what grass seed they have available for dormant seeding.