The utilisation of organic fertilizer is an effective method in organic culture of medicinal plants because of its useful role on improvement of soil properties, reduction of environmental problem and better plants growth. This study was conducted as a pot experiment to determine of the influence of different level of vermicompost (0,5,10,15,20 and 25 %), complete chemical fertilizer(NPK), vermi-wash and Fusin( spraying on morphological traits such as plant height, leaf area and leaf number per plants, internode length and node number per plant, fresh and dry herb yield, seed yield and essential oils content of the plant.The experiment was conducted in randomized complete block design with 9 treatments and 7 replications. The results showed that different levels of vermicompost had significant effects on morphological traits and yield of sweet basil. Using 20% vermicompost produced the highest fresh and dry herb yield. The highest essential oils content was resulted of 15% vermicompost which showed significant difference when compared with untreated control. Plants treated with 25 % vermicompost produced highest seed weight (2.312g/ plant) that was significantly different with all other treatments. In conclusion, 15% vermicompost was the best treatment for yield and essential oils production and the best seed yield need to more vermicompost treatment near 25%

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