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
... 44, 20.5% from 45 to 64, and 14.1% who are 65 years of age or older. The median age is 28 years. For every 100 females there are 82.8 males. For every 100 females age 18 ...