Alcea three centimeters wide and may be pink, white, purple, or yellow. The fruit is a schizocarp, a dry disc divided into over 15 sections that contain seeds. There are about 60 species of "Alcea", including: Hollyhocks are popular garden ornamental plants. They are easily grown from seed. Breeds with red flowers attract hummingbirds and butterflies. Cultivars have been bred, especially from "A. rosea". They include the double-flowered 'Chater's Double', the raspberry-colored 'Creme de Cassis', and 'The Watchman', which has dark, nearly black, maroon flowers. The stems of hollyhocks can be used as firewood, and the roots have been used medicinally.
San Francisco Flower & Garden Show Center in 2017. San Francisco Flower & Garden Show The San Francisco Flower & Garden Show is an annual public show serving the northern California, USA region. Attendance ranges from 25,000 - 30,000. The show is five days long, running Wednesday through Sunday, and is typically held in March. The show consists of three main components: approximately 15 display gardens ranging from 500 to 1,500 sq. ft. in size, educational displays, vendors promoting and selling garden-related products, and free seminars. Seminar speakers include garden and design experts from the U.S. West Coast. Two large flower shows that preceded the San