O’Hara Woods Preserve in Romeoville will host Where the Wildflowers Are from 5 to 6:30 p.m. on Friday, May 15.

Search for spring wildflowers and learn the stories, uses and lore behind these fleeting blooms on a guided hike.

The hike is about two miles on natural surfaces with some hills.

This free event is intended for ages 10 and older. Register by May 13.