Vizianagaram Fort is situated at the heart of the town with illuminates many lives and also home for both Flora and Fauna. The present paper explores the Flora of Vizianagaram fort. It is not only Royal palace or educational institution or tourist place but also a home of biodiversity, having good number of Flora and Fauna. The fort plants categorized into Mushrooms, Pteridophytes, Gymnosperm, Herbs (decumbent herbs, tuberous herbs), Shrubs, Trees ( Shade trees, fruit yielding, Palms, Ornamental tree), Creepers, Hydrophytes, and Xerophytes etc. of 279 species belongs to 71 families. Economically fort plants are categorised into Medicinal plants, Ornamental plants, Weeds, Fruit yielding plants, Vegetable plants, Fibre yielding plants, Wood yielding plants, Fodder plants and Dye yielding plants.