A pot experimental study was carried out to study the effect of some different mixture growing media and chemical fertilization as well as their interaction on vegetative growth and chemical composition of false aralia (Aralia elegantissima) plants. Obtained results showed that: the tallest plant, largest leaf area and the
heaviest fresh and dry weights of leaves/plant were recorded on plants grown in a mixture medium involving compost + peat moss + vermiculite at a ratio of 1:1:1 by volume and received chemical fertilization at 7g /pot in
the two seasons. Besides, the greatest leaves number/plant was scored by those grown in M3 medium and received chemical fertilization at the high rate in the two seasons. Furthermore, the thickest stem was recorded by those
grown in M4 and sprayed with chemical fertilization at the high rate in the two seasons. The greatest leaf nitrogen and total indoles contents as well as the lowest total phenols contents were recorded by the plants grown in a
medium containing compost + peat moss + vermiculite and fertilized with chemical fertilization at 7 g /pot in the two seasons. Moreover, the highest leaf phosphorus % was scored by those grown in M2 medium and fertilized
with chemical fertilization at the high rate, while the highest value of leaf potassium % was detected by those grown in M3 and supplemented with chemical fertilization at the high rate in the two seasons.