The tiger nut grass benefits from warmer average temperatures, as it develops well at about 12-35 °C. Its success is based on a very effective propagation: the plant forms tubers about 1-2 cm in size, the "tiger nuts" as overwintering organs. These tubers survive even light frosts and can survive in the soil for several years. They sprout in late spring and form numerous daughter plants during the summer via underground runners that are 1 to 2 mm thin. Toward the end of the growing season, tubers are formed at the tips of the stolons. Hundreds of tubers can develop from a single plant over the course of a growing season.
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