Did You Know? Illinois is home to one of the largest greenhouse conservatories in the U.S.Garfield Park Conservatory, located on Chicago’s West Side, is one of the largest greenhouse conservatories in the country. Construction began in 1906 after three smaller greenhouses in Humboldt, Douglas and Garfield parks were demolished to create “the largest publicly owned conservatory under one roof in the world.”

The 14-acre conservatory, which is owned and operated by the Chicago Park District, attracts more than 100,000 visitors every year and includes nearly 10,000 different species of plants, including 600 cacti and succulent species as well as 150 species of ferns.

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Garfield Park Conservatory
Garfield Park Conservatory to reopen in full on earth Day - Chicago Tribune