Volunteer to help the Water Resources Education Center keep its gardens weed-free. Volunteers will tidy the garden and pull blackberries, ivy and other spring weeds at the Water Center, 4600 S.E. Columbia Way, from 9:30 a.m. to 11:30 a.m. June 9. Tools will be provided. Volunteers should bring gloves. Sign up at volgistics.com/appform/348302940.