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The drip Hydroponics system has a weakness which at a high evapotranspiration condition cant fulfill plant water requirement properly. Improve the composition of plant growth media with cocopeat and rice husk charcoal as a solution to increase Kailan Plant Growth. This research aims to study the effect of a ratio between cocopeat and rice husk charcoal as plant media on the growth of Kailan Plant with drip hydroponic system. The research was conducted at Jatinangor-Sumedang-West Jawa from November to December 2017. The method of this research was use completely randomized design with five treatment (A=Cocopeat 100%; B=Cocopeat 75%+ Rice Husk Charcoal 25%; C= Cocopeat 50% + Rice Husk Charcoal 50%; D= Cocopeat 25% + Rice Husk Charcoal 75%; E= Rice Husk Charcoal 100%), and five replication. The growth indicator in this research is plant height, number of leaves, leaf area, fresh plant weight, and shoot-root ratio. The ratio of cocopeat and rice husk charcoal as plant growth media affect the plant growth of kailan. The result showed that composition grows media Cocopeat 75% + Rice husk charcoal 25% affect plant height, fresh plant weight, and shoot-root ratio.