The objective of the research was to determine the effects of liquid organic fertilizer and defoliation interval on growth characteristics and quality of elephant grass cv. Taiwan. The research was assigned in completely randomized 3 x 3 factorial design with 3 replications. The first factor was liquid organic fertilizer with three doses (0, 300, and 600 ml/polybag) and the second factor was defoliation interval with 3 intervals (30, 45 and 90 days). Parameters observed were plant height, number of leaves, leaf area, number of tillers, dry weight, crude protein, ADF and NDF contents. Results showed that liquid organic fertilizer had significant effect (P<0.05) on plant height, number of leaves, leaf area, number of tillers, and dry matter yield but had no significant effect on crude protein, ADF and NDF contents. Defoliation interval significantly (P<0.05) influenced growth characteristics and quality of the plant. As increasing defoliation interval, plant height, number of leaves, leaf area, and number of tillers increased, but crude protein decreased while ADF content increased. NDF levels did not significantly influenced by defoliation interval. It can be concluded that liquid organic fertilizer and manipulation of defoliation interval can be used to increase the growth characteristics and quality of elephant grass cv. Taiwan.