Two field trials were carried out  during the two successive winter seasons of 2015/2016 and 2016/2017 at the Experimental  Farm of Sids Horticulture Research Station, Agriculture Research Center, Egypt. The objective of this study is to investigate the effect of both irrigation frequency, i.e., irrigation once every 14 days (the plant received 10 irrigations),21days (the plant received 7 irrigations) and 28 days (the plant received 5 irrigations) and plant density. The cloves number was 30 cloves/ m² (D₁) in low plant density 45 (D₂) and 60 cloves/ m² (D₃)  in the higher plant density was used Egaseed-1 garlic cultivar. The obtained results indicated that effect of irrigation numbers and plant densities were significantly affected all vegetative growth parameters (plant height,, leave numbers, vegetative growth weight and bulbing ratio)  and all bulb quality parameters (bulb dry matter %,  clove weight (g), bulb fresh weight (g) and cured bulb diameter (cm) of Eggaseed-1garlic cultivar where the highest values of various vegetative growth and bulb quality parameters were recorded with plants that received 10 irrigations addition to low plant population (30 cloves / m2). The highest marketable yield were recorded when plants received 10 irrigations in addition to low populations 30 cloves /m². However, the lowest values of  all yield parameters were recorded when plants received 5 irrigations in addition to high population 60 plants/m². in both seasons. Irrigation plants every 28 days with high population (60 plants/m2) significantly decreased weight loss % after two, four and six months under storage in both seasons.