This is the largest orchid show in the United States, featuring thousands of orchids and a range of new spring and seasonal plants for the garden as well as garden-related products and services. Hall of flowers, San Francisco County Fair Building, 1199 9th Ave., orchidsanfrancisco.org

The only three-day event devoted entirely to Zinfandel, the Zinfandel Experience brings together winemakers and enthusiast for dinners, a grand tasting and seminar-style tastings and auctions at three San Francisco venues: One Market, Bently Reserve and Pier 27. For more information visit zinfandelexperience.com