Organic materials, when added to the soil have numerous beneficial effects, which include increased soil fertility, a balanced supply of nutrients, and buildup of organic matter. The study was conducted to determine the effects of vermicasts produced by cow dung, sawdust, and shredded paper on the growth rate and yield of pechay for 35 days or five (5) weeks. The experimental research design used was a complete blocked design (CBD) wherein the first three (3) groups were enhancements, and the fourth group was controlled. The result showed a highly significant difference in the height and yield of pechay between experimental and control groups. The most noticeable differences in yield and height were the plants put into cow dung treatment. However, the results showed that sawdust and shredded papers could not show promising results than cow dung counterparts because the controlled group outranked it. This implies that although there is a certain range of values between sawdust, shredded paper, and controlled group, fertilizers truly provided significant gain both on biomass and length of pechay on all the experimental groups. Still, pechay treated with vermicast produced by cow dung obtains greater height and biomass than the other two experimental and controlled groups. It was recommended that cow dung should be utilized effectively as an organic fertilizer on fields, farms, and farmers.