Help improve a forest preserve prairie or woodland by collecting seeds or removing nonnative plants. Ages 8 and up; under 18 with an adult. Free. Register online or at 630-206-9630 at least five days in advance (10 days by phone for groups of five or more). For workday locations and dates visit Forest Preserve District of DuPage County's online Calendar of Events (These opportunities are not available for court-ordered community service).
