This investigation was conducted during two successive seasons 2022 and 2023 on ‘Barhi’ one-year, two-years and three-year date palms offshoots, in addition two times of transplanting were examined (Early April and Early September). The bases of offshoots treated with chitosan, then the offshoots transplanted in large potted pots filled with medium of five parts sand and one-part clay. The offshoots were irrigated regally with 1600 ppm salinity water. The obtained results confirmed that under salinity stress, treated the base of ‘Barhi’ offshoots with chitosan at 0.2% is an effective and important to ensure the success of ‘Barhi’ offshoots and enhancing the vegetative parameters, leaf photosynthesis pigments, and macro uptick. Furthermore, the age and the transplantation date of ‘Barhi’ offshoots significantly effected of most vegetative parameters, root system parameters and leaf chemical composition. The obtained results also confirmed that the interaction between chitosan concentrations and offshoots age and its transplantation date was significant for all examined characters.