The current study aimed to evaluate how climatic conditions impact both the quality and quantity of phenolics in the aerial parts of Tamarix Gallica. Plant samples were gathered fro m three distinct regions in Algeria, each representing different climatic zones: humid, semi arid, and arid. Water and ethyl acetate extracts were assessed for total phenolic content, with values ranging from 16.51 to 20.35 mg EGA/g and 36.6 to 103.14 mg E GA/g, respectively. Similarly, flavonoid levels were determined, showing a range of 16.51 to 20.35 mg EQ/g for water extracts and 36.6 to 103.14 mg EQ/g for ethyl acetate extracts. Notably, the predominant phenolic compounds identified were Hesperidin and Rosmarinic acid, with their concentrations varying significantly based on the collection site and the solvent used for extraction.