This flower nursery, which assembles all the best flowers indigenous to the West Lake, is a O.27 - hect are affair that produces more than 5,OOO varieties of flowers . Botanical Garden: Built in 1956, the Botanical Garden covers a total area of 231.3 hectares and is planted with 3,400 varieties of plants from at home and abroad. Flowers are blooming all the year round in this garden.