Tower Hill Botanic Garden will host the 185th annual Massachusetts Camellia Show, the oldest display of its kind in the country, next weekend. Camellias, which are native to Japan and other parts of Asia, are an evergreen shrub that can yield six varieties of flowers. The plant, which resembles a lotus, was mistakenly introduced to this continent by merchants trading in China during the late 1700s. The event runs from 11 a.m. to 5 p.m. Saturday and from 9 a.m. to 4 p.m. next Sunday, and is included in the regular price of admission to the garden, at 11 French Drive. For more information, visit www.towerhillbg.org.