Rotary Botanical Gardens is a 15-acre (61,000 m2) botanical garden located in Janesville, Wisconsin that is open to the public. It was established by the Janesville Noon Rotary Club on the grounds of a defunct quarry.
The gardens include 1008 taxa (3,032 specimens) of woody plants (trees, shrubs, vines); 2,112 taxa (6,185 specimens) of perennials; 928 taxa (350,000 total bulbs, not including tulips) of bulbs; and 500 yearly taxa (averaging 75,000 plants/year) for a running total of 4548 taxa (and growing) of seasonal plantings.