In drought studies, Zoysia macrantha was found to be more drought tolerant than Buffalo and Couch turf. With Nara™ Zoysia being the first and only commercial Zoysia macrantha, this is great news for anyone needing an extremely drought tolerant native turf.
Broad leaf Carpet Grass and Sweet Smother Grass were relatively drought sensitive and Marine Couch, Sporobolous virginicus, Sand Couch and Zoysia macrantha were relatively drought tolerant. The Bermuda (Couch), Queensland Blue Couch and Buffalo grasses had intermediate drought tolerance.
*Information from Water Use Studies for Management of Subtropical C4 Turf Grasses in Dryland and Irrigated Urban Open Space. Released by Horticulture Australia and Queensland Department of Primary Industries.*