Overseeding in the Fall

Grass and a blue sky.
Grass and a blue sky.

Author: Amanda Folck, Turfgrass Extension Educator

We are officially into turfgrass overseeding season. The suggested timing for turfgrass overseeding for cool-season grasses is from August 15 to September 15 in eastern Nebraska and August 15 to September 5 for western Nebraska. But why this specific time for overseeding during these dates?

Less Weed Competition
Historically at this time of year, the air temperature starts to cool down towards fall. With this decrease in temperatures and humidity, weed competition decreases. This leads to fewer weeds for competition with newly established turfgrass from seed.

Favorable Growth
Cool-season grasses like Kentucky bluegrass and tall fescue are more favorable for growth in cooler temperatures from August to early November. In conjunction with less weed competition, this allows more timing and is preferred for growth in the fall for cool-season grasses than in the spring.

Full story at Overseeding in the Fall.

More details at: https://go.unl.edu/timn