Apart from the animal world there are other various floras in Namdhapa that adds a different tinge to the ambience. The lush green tropical rainforest coupled with mountain forest create a typical ambience with varieties plants like Oak, Magnolia, Pine, Betula and Rhododendrons.
The national park is also known as the botanical garden where 150 species of plants can be spotted. There are varieties of colorful flowers and orchids that increase the beauty of the place and adds life to the monotonous forest foliage. You can locate Blue Vanda which is regarded as one of the oldest orchid plantation. Spotting varieties of plantation and rare flora is one of the important activities of the national park.