The study has been done in many farms which are producing sweet cherry in Lattakia during the season (2014-2015). This research focuses on study timing of phonological stages of sweet cherry in two regions (sluonfa , aen alhaeat) in Lattakia ciety and studies the effect of some climatological conditions like temperature and rain on this plant . The result of this study revealed clear variation in the climatological conditions between the two regions under study. T his variation in climatological conditions led to variation in the phonological stages of sweet cherry in two regions under study.