Nui is the most widely sown perennial ryegrass in New Zealand; an older traditional cultivar that continues to be popular due to its hardness, persistence and economy. In terms of attributes, it has medium-sized leaves and tiller density. Nui performs well in both the winter and spring. It establishes well with great disease resistance and tolerates low fertility conditions. Generally, it persists well under set stocking along with a range of environmental conditions.