Since 1936, the Niagara Parks Botanical Gardens have delighted visitors with 100 acres of flowers. The visual and fragrant highlight are over 2,400 roses. Popular among children is the Butterfly Conservatory featuring more than 2,000 tropical butterflies. The grounds of the Botanical Gardens are maintained by students of the Niagara Parks School of Horticulture. This institution provides a 36 month program for those seeking a professional career in garden cultivation and management.