At this weekend’s S.B. Orchid Estate International Orchid Fair, attendees will browse orchids from more than 30 vendors and organizations from five countries around the world. Potting demonstrations and gardening lectures will also highlight the event, which runs Friday-Saturday, July 8-9, from 9 a.m.-5 p.m., and Sunday, July 10, from 10 a.m.-4 p.m., at Earl Warren Showgrounds (3400 Calle Real). Admission is free. Call 967-1284 for more info.