Q.Is It A Good Or Bad Idea To Plant Creeping Red Fescue With Buffalo Grass Together?
We have a sunny zone 4 slope. I want a more spring to fall green understory grass mix for a native meadow.

Certified GKH Gardening Expert
Red fescue is native to Europe and needs regular watering. Lack of water can send it into dormancy. It performs better when mixed with seeds such as bluegrass or ryegrass.
Buffalo grass needs little water and may not be suitable with red fescue. However, it tends to be sparse so another grass may be beneficial. Here is more about the two:
https://www.gardeningknowhow.com/lawn-care/specific/buffalo-grass/care-of-buffalo-grass.htm
https://www.gardeningknowhow.com/lawn-care/specific/red-fescue-grass/red-fescue-planting.htm