Good Answer
In fact, the winner is bamboo. Although batai (record: 30 m in five years) and chaparral yucca (record: 3.65 m in 14 days) perform well, bamboo is the champion. It reaches its maximum height in only a few months. The stems of certain species can lengthen a metre a day!
© Jardin botanique de Montréal (Gilles Murray)