6 p.m. Janet Davis of Hill House Farm and Nursery shares ideas about adding layers of diversity to gardens and how native plants add enhanced livability to our world. Beckon birds, befriend butterflies and pamper pollinators by incorporating these concepts and plants. Plant sale to follow. Virginia Cooperative Extension Office (24 Pelham St., Warrenton, VA). Free.. RSVP to the Fauquier County Master Gardener Help Desk at 540-341-7950 ext. 1 or email helpdesk@fc-mg.org.