The City received the GRO1000 Gardens & Greenspaces [usmayors.org] national award to create monarch habitat areas along the St. Louis Riverfront Butterfly Byway (Jan 2016)
There are currently 308 Monarch gardens in the city of St. Louis, and you may visit ours at the Lafayette street side of Soulard Market.
See the current map of where they are located and find out how you can register your own garden.