<![CDATA[Eggplant (Solanum melongena L.) is one of the horticultural crops with high economic value and good market potential. However, its growth and yield can be affected by low soil fertility, particularly limited organic matter and nutrient availability. Gamal leaves (Gliricidia sepium) contain essential nutrients such as nitrogen, phosphorus, and potassium, which have the potential to be used as raw material for liquid organic fertilizer. This study aimed to determine the effect of different concentrations of gamal leaf liquid organic fertilizer on the growth and yield of eggplant. The research was conducted from January to May 2026 using a non-factorial Randomized Block Design with five treatments and five replications. The treatments consisted of P0 = 0 ml/L water, P1 = 50 ml/L water, P2 = 100 ml/L water, P3 = 150 ml/L water, and P4 = 200 ml/L water. The observed variables were plant height, number of leaves, fruit length, and fruit weight per plant. Data were analyzed using Analysis of Variance at the 5% level, followed by Duncan’s Multiple Range Test when significant differences were found. The results showed that gamal leaf liquid organic fertilizer affected the growth and yield of eggplant. The best treatment was P3 with a concentration of 150 ml/L water, which produced the highest plant height, number of leaves, fruit length, and fruit weight. Therefore, gamal leaf liquid organic fertilizer at 150 ml/L water can be recommended as an effective organic fertilizer to support eggplant cultivation]]>
