Another essential part of the Botanic Gardens are the Tropical Greenhouses, most of which are open to the public. The research section is not accessible to visitors.
The tropical collection has many Orchids and Bromeliads and specializes in plants from the northern part of the neotropics (South America). Here you will also find food plants like Banana, Mango and Vanilla.
The anual Butterfly Festival in summer also takes places in one of the greenhouse compartments.