Washington State University Extension Master Gardener Anne Bulger will lead a free workshop about how to attract super-pollinating mason bees to your back yard from 10:30 a.m. to noon March 9 at the Camas Public Library, 625, N.E. Fourth Ave., Camas. No registration is necessary. Learn more at camaspl.org/mason. This workshop is put on in collaboration with Clark County Public Works Green Neighbors Program. For more information, contact Erika Johnson at erika.d.johnson@wsu.edu or 564-397-5738 or visit extension.wsu.edu/clark/community-education/workshops-events/.