This study was conducted at the nursery of Timber Trees Research Department, Horticulture Research Institute, Agriculture Research Center, Giza, Egypt and at the Agriculture Botany Department, Faculty of Agriculture, Cairo Univ., during seasons of 2003/2004 and 2004/2005. The aim of this study was to investigate the effect of some different media [sand, clay and mixture of clay and compost at the ratio of 1: 2 (V/V)] on the growth and anatomical characteristics of Ceratonia siliqua plant (Carob). Data indicated that the most effective growing soil medium was clay + compost at the ratio of 1 : 2 (V/V), which gave the highest values for all recorded growth, and anatomical characteristics, whereas the least effective medium was sand, while clay soil medium showed an intermediate values.