The aquatic zone at the botanical garden fascinates the visitors with nearly 30 species of aquatic plants inclusive of water lilies and lotus. These species have high significance as ornamental despite of having very specific requirements for the successful rearing. This zone has 6 species that are endemic to South India in addition to Victoria regia (World’s largest leaved water lily), Crinum malabaricum (a new species narrow endemic to the pools in the laterite plains of Northern Kerala), Lagenandra ovata, Polygonum plebeium and so on .
