My Mondo Grass is turning yellow and some plants are drying up. What is happening?

Question

Planted 2 years ago in full sun, zone 9.

Answer 1

They are not tolerant of full sun. This is a shade grass, and at most, partial sun tolerant. Fungal issues can also plague these, too, during wet weather. This article will help you to care for these plants: https://www.gardeningknowhow.com/ornamental/foliage/mondo-grass/mondo-grass-care.htm

This article will help you to understand fungicide use: https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm