Cucurbita maxima 100 days. We’ve been looking for a superior kabocha for years and are happy to have landed on Sweet Mama. It's a unique kabocha that produces on a very space-saving short vine. In our trials, Sweet Mama was also among the earliest to mature. The dark green fruit reach about 8 inches across and 4 inches tall with striking gray ribs and speckles. Inside, the meaty flesh is a dark yellow with a nutty flavor.