National Geographic : 1989 Aug
the coastal town of Encinitas, Paul Ecke, Jr., led me through 35 acres of greenhouses specked with the fire-engine red of blooming poinsettias. He originates 90 percent of the mother plants from which growers around the world produce the familiar Christmas flowers. In the 1960s, when land and water prices rose, Ecke's family moved their business inside. "Poinsettias are photoperiodic," Ecke said. "They respond to a day-and-night cycle. To keep the mother plants from blooming, we San Diego-Where Two CaliforniasMeet HIGH ON HEALTH, many San Dieganshave made fitness a goal in their relentless pur suit of the perfect body. At Jazzercize, one of the largestnationwide aerobic organiza tions, with headquartersin northern San Diego County, patrons and instructorsmix it up for an instructionalvideo, used later to polish theirform.