55 to 75 Days to maturity. Cucumis sativus var. tsuyataro. Tsuyataro Cucumber Hybrid Seeds. Warm-season annual hybrid. Non-GMO. This outstanding, easy-to-grow, burpless type is popular in Japan. The skin is glossy green and smooth with a few spines. The fruit is very uniform and suitable for growing in an open field, greenhouse, as well as the home garden setting. Tsuyataro is a favorite of any gardener who has attempted to grow it before. Approximately 1,100 seeds per oz.