Here is a picture of water plants in Sunken Gardens in St Petersburg Florida
Sunken Gardens is a city park. It was started as a tourist attraction.
Florida used to have hundreds of family owned tourist attraction.
After Disney World and Sea World was built in Orlando many of the local
attractions suffered financially. Many went out of business. Sunken Gardens
managed to struggle on but finally closed in the 1990's.
It was bought by the city and restored to it's former beauty.
"In 1903 a plumber by the name of George Turner, Sr. purchased the six acres that would become a world famous botanical attraction. Using an elaborate maze of clay tiles, he drained an ancient lake on the property, leaving a Sunken Gardens is a city park. It was started as a tourist attraction. It was bought by the city and restored to it's former beauty. rich muck soil that was ideal for his favorite hobby – gardening. Neighbors so enjoyed strolling through Mr. Turner's garden, that by the early 1920's, he was charging a nickel for tours. Three generations of the Turner family continued the vision that created this unique tropical garden, with its flowing ponds.
The City of St. Petersburg purchased Sunken Gardens in 1999 with funds from a voter approved tax. Preserving the garden was a community effort. With Mr. Turner Sr.'s original vision in mind, the city's goal is to preserve this historic botanical garden and provide cultural and educational opportunities."
http://www.stpete.org/attractions/sunken_gardens/history.php
https://en.wikipedia.org/wiki/Sunken_Gardens_(Florida)
If you are ever in the area, it is worth a visit.