The Quad City Botanical Center is a set of botanical gardens located next to the Mississippi River at 2525 4th Avenue, Rock Island, Illinois. It is open daily except major holidays; an admission fee is charged.
The center opened on June 20, 1998. Its gardens include:
Coordinates: 41°30′35″N 90°33′51″W / 41.5098°N 90.5642°W