Phisherman said:

There is an area on a steep slope where I need grass to grow. I
planted seed two years ago and it is now established but there is a
very steep area (too steep to operate a lawn mower easily) about 60 x
5 feet that needs seeding. How should this be re-seeded without rain
washing it down the hill? I don't have a choice of another ground
cover, and I need to use the same seed as the rest of the lawn. Do
those seeding mats work well to control washing out?

Years ago I had to seed a sloping area of sandy soil. I laid cheese cloth
down over the area that I had seeded. The new grass easily sprouted
through the cheese cloth and the cheese cloth eventually rotted away.
--
Pat in Plymouth MI ('someplace.net' is comcast)

Any technology distinguishable from magic is insufficiently advanced.
(attributed to Don Marti)