Q.Just planted muhly grass (coastal SC) and it’s turning brown and flopping over.
In just 3 weeks time it is 75% flopped over with only a few green shoots remaining. Stems are not brittle. Soil is slightly “clayish” but I don’t see any “pooling” of water.Help!

Certified GKH Gardening Expert
If it's been especially hot in your area this summer, your grass may have lapsed into dormancy and should come back when it starts to rain again. Here's an article on how to care for it: https://www.gardeningknowhow.com/ornamental/foliage/muhly-grass/growing-muhly-grass.htm