The research was conducted in the ornamental plants laboratory, Faculty of Agriculture, to determine the best seed germination conditions of Sophora japonica and S. secundiflora. Different seed pre-treatments (cold ater (6oC) and warm water (50oC) immersing, Citric acid (2%) and Sulphoric acid (25, 50%) stratification) were experimented. The effect of different culture mediums and sowing times were also investigated. The results indicated that the chemical pre-treatments represented the highest relative germination rates compared to the physical pre-tretments. Among the physical pretreatment, the seed immersed in hot water for 2h showed the highest germination percentage (38,6 – 30%) for S. japonica and S. secundiflora respectively. While, the seed treated with sulphoric acid represented the best germination percentage for the tow species (58,3 – 63,6%). Nevertheless, the increase of the sulphoric acid concentration had a negative impact on survival plantlet rates for the tow species, specially for S. japonica. The results showed that the seed sowing in sand with soil and organic mature (1:1:1) medium realized the best germination percentage for the tow studied species.