What is this?
Hi there, I've found this plant in my front garden. Thought at first it might be a part of the MUM plant bushes that I have there but the features and the eventual blossom surprised the heck out of me!!!! I have not been able to find a google image or identification site yet. Hoping that you can help me!
Lake County Illinois
Hi--this looks like Hibiscus trionum, or flower-of-an-hour. This used to be cultivated as a garden plant, but it's escaped the garden and is now fairly common in central and northern IL, but not as common in the southern parts of the state. It flowers in August-September, and each flower blooms only for a short time on a single sunny day. Bees and butterflies like it. It can get weedy because the seeds can remain viable in the soil for a long time before germinating.
For more information: https://www.illinoiswildflowers.info/weeds/plants/hour_flower.htm