This investigation was carried out during two successive seasons (2004 and 2005) to evaluate some peach cultivars namely "Florda Prince", "Florda Gold" and "Early Grand" at two locations; El-Wahat El-Baharaia (Sandy loam Soil) and El-Badrashin (Heavy Clayey Soil), Giza, Egypt. This evaluation includes trees canopy characteristics, phynological phases, fruit set, fruit growth and development; fruit physical and chemical characteristics.  Data obtained could be summarized as follows: the tree height of all cultivars were significantly higher in the second location than the first one in both seasons. The tree circumference of  studied cultivars was not significantly different in both locations. The trunk diameter of the studied cultivars differed significantly in the two locations and the second one was higher than the first in this respect. Wherever, the first location was earlier in the bud burst, beginning of flowering, fruit set and harvesting of yield than the second location. While, the percentage of leaf buds were significantly different between all cultivars in both seasons, The percentage of leaf buds were the highest in "Florda Gold" (32.8 – 35.4 %) but "Early Grand" gave the lowest average percentage (30.4 – 30.6 %) in both studied seasons respectively, in the first location the percentage was the highest in "Florda Prince" (33.9 – 41.7 %) but "Early Grand" gave the lowest average percentage (30.2 – 38.2 %) in both studied seasons respectively. The highest floral buds in the "Early Grand" cultivar (60.6 – 55.0 %), while "Florda Prince" gave the lowest average percentage (59.0 – 52.7 %) in both seasons respectively. These results were obtained in the first location. But in the second location had, the percentage of floral buds were the highest in "Early Grand" (57.6 – 51.6 %) but "Florda Gold" had the lowest average percentage (50.7 – 49.5 %). The fruit set percentage of studied cultivars in both locations was not significantly different. On the other hand, the increase in both polar and equatorial diameters in the second location were higher than the first location. Regarding the fruit quality, "Early Grand" cultivar gave the highest fruit weight and "Florda Prince" showed the least values in this respect in both locations during both seasons. Thus, the second location was higher than the first one in this respect. Also, the average yield in the first location was higher than the second locations. Moreover, the data indicated that, the difference in T.S.S. % of the studied cultivars was not significant between the two locations. The percentage of total acidity decreased gradually until maturity stage. "Early Grand" cultivar gave the highest values (0.80 and 0.82% in the first location & 0.73 and 0.71% in the second location), while "Florda Prince" cultivar showed the lowest values (0.55 and 0.58% in the first location & 0.55 and 0.53% in the second location) during both seasons respectively. On the other hand, there was significant differences in Total Acidity among the three cultivars and between the two locations. Fruit firmness showed non significant differences between both locations but the differences were among the three cultivars. While, "Early Grand" cultivar showed the highest value of fruit firmness in mature fruits and the least firmness was obtained from "Florda Gold" cultivar.