To celebrate the city’s 171st birthday in 1952, Mayor Fletcher Bowron declared the tropical plant (it’s native to South Africa) as L.A.’s floral emblem. The orange-and-blue flowers soon became a hot item in nurseries. Officials also considered the geranium, calla lily, and bougainvillea, but Strelitzia reginae had friends in high places: Seed magnate Manfred Meyberg and his men’s club, a group of 100 powerful executives with green thumbs, lobbied for the birdlike bloom.

Illustration by Jason Schneider