A botanical garden is a place where plants, especially flowers, are grown and displayed. They are sometimes referred to as arboretums[?]. They are occasionally associated with zoos.
This page lists important botanical gardens throughout the world
... and 19.9% who are 65 years of age or older. The median age is 43 years. For every 100 females there are 102.7 males. For every 100 females age 18 and over, there are ...