The bamboo is a member of the Poaceae family, with 1439 species, among them, the Bambusa tuldoides is a species of medium-sized and is widely used in the production of cellulose. The objectives of this work were to assess plant height of Taquara plants (Bambusa tuldoides) fertilized with potassium and zinc. The experimental design was randomized block, in a split-split-plot arrangement (2 × 2 × 4) with three replications, with two potassium rates in the plots (0 and 80 kg ha-1), two zinc rates in the subplots (0 and 5 kg ha-1), and four evaluation times in the sub-subplots (60, 90, 120 and 150 days after sprouting). Morphological characteristics: plant height was evaluated monthly. Plant height and were measured using a tape measure. The fertilization with potassium rates and zinc influences the growth and development of Taquara plants (Bambusa tuldoides).