70 Days to maturity. Cucumis melo var conomom. Oshiro Uri Numane Pickling Melon Seeds. Warm-season annual heirloom. The Numane melon is a delicious traditional Japanese pickling melon. It grows as a vining plant, with the vines getting as long as 10 feet. Its fruits are light green and elongated up to 12 inches long. It looks very much like a light green, thick cucumber. The melons get lighter in color as they mature. Approx 1,400 seeds / oz.