The experiment was conducted using a randomized complete block design in the growing season of 2022 to examine the impact of the comparison treatment and the addition of chelated iron nanoparticles at concentrations (25, 50, and 75 mg/L) on some physiological and vegetative growth traits of celery plants. The treated plants outperformed the untreated plants in all examined attributes, the data showed. The findings revealed that the maximum plant height was 35.21 cm, the most leaves were 20,63, and the largest leaf area was 77.70. The highest fresh weight value was 19.46 g, followed by the highest dry weight value of 4.17 g. When treated with a concentration of 75 mg/L chelated iron nanoparticles, the greatest total value of chlorophyll (79.42), the largest percentage of the total elements N (3.63%), P (0.57%), and K (2.83%), and the highest percentage of carbs (36.96%) were obtained. The greatest protein value was 17.100%, followed by iron (166.47%) at a concentration of 50 mg/L of chelated iron nanoparticles, fat (10.52%), calcium (235.67%), sodium (1435.08%), zinc (46.52%), and zinc at a concentration of 25 mg/L of chelated iron nanoparticles.