Plant height values fluctuated from 268.0 to 291.3cm by varying nitrogen doses in the years of study. In the scientific literature, it was reported that plant height of the wormwood ranged from 50.0 to 200.0cm (Baytop, 1984; Woerdenbag et al., 1994; Ferreira and Janick, 1996). Plant height values determined in the present study were higher than that of the researchers’ findings. There are a number of factors affecting plant height such as different agricultural practices, growing conditions, climatic and soil properties, and plant ecotypes. Mert (1999) reported that plant heights of the different wormwood ecotypes grown in Turkey ranged between 177.3 and 217.2 cm, which are similar to our results.