I've never grown it, but I would keep some of the divisions in the shadier spot, just in case the others don't do well with more sunlight.

Thanks for the suggestion! Definitely not liriope. I love that stuff, and have quite a bit of the variegated sort. I agree the pics look sort of like it. I’ll try to get better ones tomorrow. This “grass” is much finer. You know how liriope has almost a leathery texture? These blades are papery thin. And only about 1/4” wide, if that. The roots are hairy and fine, not at all like the wiry orange roots of liriope. Pulling apart a clump is easy-peasy. It almost falls apart. Vs the “I need wire cutters to divide” liriope. This “grass” doesn’t form the thick, fleshy root chunk that liriope does. lol. sorry to harp on the differences. That just gave me an excellent comparison point to describe it. Thanks :)

Hello I'm trying to add more greenery to our slope and would like an opinion on what would be a good option for it. We are in SoCal close to beach. I was thinking red creeping fescue or sand dune sedge? Thank you

I think it is Hop sedge - Carex lupulina.