TL;DR
Overseeding is the spreading of grass seed over an existing lawn to thicken thin turf, introduce improved varieties, or repair summer damage, without tearing out what is there. Timing drives success — late summer to early fall for cool-season lawns, late spring for warm-season — and seed-to-soil contact is the limiting factor, which is why it pairs with core aeration or slit seeding.
What it means
Overseeding is the spreading of grass seed over an existing lawn to thicken thin turf, introduce improved varieties, or repair summer damage, without tearing out what is there. Timing drives success — late summer to early fall for cool-season lawns, late spring for warm-season — and seed-to-soil contact is the limiting factor, which is why it pairs with core aeration or slit seeding. Expect watering instructions and a mowing holiday while seedlings establish.
Where it sits in the glossary
Overseeding is part of the Trade jargon group inside the ProFix Directory glossary. Browse every term in this category from the glossary index.
Why Ohio homeowners should know it
This is a term Ohio homeowners encounter when reading contractor quotes, hiring paperwork, or inspection reports. Understanding it well enough to ask one good follow-up question is usually all the protection a homeowner needs.
ProFix Directory keeps definitions short on the index page and saves the longer context — Ohio-specific rules, where the term comes from, and which ProFix tools touch it — for these per-term pages so the term is easy to cite and easy to share.
ProFix tools that touch this term
See also
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