A new and distinct variety of blueberry plant, which is denominated varietally as ‘NS 13-1’ is described, and which produces a fruit having a medium to large fruit size, high fruit sweetness, high fruit firmness, and low fruit acidity and which, when ripe, detaches well from the plant, and which further has a very early fruit production date, when grown under the ecological conditions prevailing near Yanchep Springs, Yanchep, Western Australia.