The Richmond Home and Garden Show, one of the region’s longest-running and largest horticulture exhibitions, returns for its 36th year. It features hundreds of exhibitors of home and garden goods and services, including residential landscaping, decorating, remodeling and building. The weekend also will feature garden displays, green-thumbed speakers, seminars and demonstrations ranging from basic home improvements and maintenance projects to major renovations. The Richmond Home and Garden Show takes place March 2-4 at the Richmond Raceway Complex. $6-$9. RichmondHomeAndGardenShow.com.