Flower power was a slogan used during the late 1960s and early 1970s as a symbol of passive resistance and non-violence ideology. It is rooted in the opposition movement to the Vietnam War. The expression was coined by the American Beat poet Allen Ginsberg in 1965 as a means to transform war protests into peaceful affirmative spectacles. Hippies embraced the symbolism by dressing in clothing with embroidered flowers and vibrant colors, wearing flowers in their hair, and distributing flowers to the public, becoming known as flower children. The term later became generalized as a modern reference to the hippie movement and the so-called counterculture of drugs, psychedelic music, psychedelic art and social permissiveness.
Flower Power originated in Berkeley, California, as a symbolic action of protest against the Vietnam War. In a November 1965 essay titled How to Make a March/Spectacle, Ginsberg advocated that protesters should be provided with "masses of flowers" to hand out to policemen, press, politicians and spectators. The use of props like flowers, toys, flags, candy and music were meant to turn anti-war rallies into a form of street theater thereby reducing the fear, anger and threat that is inherent within protests. In particular, Ginsberg wanted to counter the "specter" of the Hells Angels motorcycle gang who supported the war, equated war protesters with communists and had threatened to violently disrupt planned anti-war demonstrations at the University of California, Berkeley. Using Ginsberg's methods, the protest received positive attention and the use of "flower power" became an integral symbol in the counterculture movement.
— Abbie Hoffman, Workshop in Nonviolence, May 1967
By late 1966, the Flower Power method of guerilla theater had spread from California to other parts of the United States. The Bread and Puppet Theater in New York City staged numerous protests which included handing out balloons and flowers with their anti-war literature. Workshop in Nonviolence (WIN), a magazine published by New York activists, encouraged the use of Flower Power. In May 1967, Abbie Hoffman organized the Flower Brigade as an official contingent of a New York City parade honoring the soldiers in Vietnam. News coverage captured Flower Brigade participants, who carried flowers, flags and pink posters imprinted with LOVE, being attacked and beaten by bystanders. In response to the violence, Hoffman wrote in WIN magazine, "Plans are being made to mine the East River with daffodils. Dandelion chains are being wrapped around induction centers.... The cry of 'Flower Power' echoes through the land. We shall not wilt."
On the following Sunday in May 1967, WIN activists declared the Armed Forces Day as "Flower Power Day" and held a rally in Central Park to counter the traditional parade. Turnout was low and, according to Hoffman, the rally was ineffective because guerilla theater needed to be more confrontational.
In October 1967, Hoffman and Jerry Rubin helped organize the March on the Pentagon using Flower Power concepts to create a theatrical spectacle. The idea included a call for marchers to attempt to levitate the Pentagon. When the marchers faced off against more than 2500 Army national guard troops forming a human barricade in front of the Pentagon, demonstrators held flowers and some placed flowers in the soldier's rifle barrels.
|The classic photo of a young woman with a flower facing-off against soldiers with fixed bayonets, by Marc Riboud|
|Pulitzer Prize-nominated Flower Power photo by Bernie Boston.|
Photographs of flower-wielding protesters at the Pentagon March became seminal images of the 1960s anti-war protests. An image by French photojournalist Marc Riboud that was printed throughout the world was of seventeen-year-old high school student Jan Rose Kasmir clasping a chrysanthemum and gazing at bayonet-wielding soldiers. Smithsonian Magazine later called it "a gauzy juxtaposition of armed force and flower child innocence".
One photo, titled Flower Power by Washington Star photographer Bernie Boston, was nominated for the 1967 Pulitzer Prize. The photo, taken on October 21, 1967, shows a young, long-haired man in a turtleneck sweater, placing carnations into the rifle barrels of military policemen. The young man in the photo is most commonly identified as George Edgerly Harris III, an 18-year-old actor from New York who later performed in San Francisco under the stage name of Hibiscus. The young man also has been identified by Paul Krassner as Youth International Party organizer, "Super-Joel" Tornabene. Harris died in New York in the early 1980s during the early stages of the HIV/AIDS epidemic, while Tornabene died in Mexico in 1993.
On 10 December 1971, John Lennon, an outspoken critic of the war, appeared at a rally for John Sinclair, a political activist and founding member of the White Panther Party, who had been sentenced to 10 years for marijuana possession. He said, "OK so Flower Power didn't work. So what. We start again."
By the early 1970s, the Flower Power anti-war movement had faded primarily due to the end of the military draft in 1972 and the start of American withdrawal from combat activities in Vietnam in January 1973. 
The iconic center of the Flower Power movement was the Haight-Ashbury district in San Francisco, California. By the mid-1960s, the area, marked by the intersection of Haight and Ashbury streets, had become a focal point for psychedelic rock music. Musicians and bands like Jefferson Airplane, the Grateful Dead and Janis Joplin all lived a short distance from the famous intersection. During the 1967 Summer of Love, thousands of hippies gathered there, popularized by hit songs such as "San Francisco (Be Sure to Wear Flowers in Your Hair)". A July 7, 1967, Time magazine cover story on "The Hippies: Philosophy of a Subculture" and an August CBS News television report on "The Hippie Temptation", as well as other major media interest, exposed the hippie subculture to national attention and popularized the Flower Power movement across the country and around the world. That same summer, the Beatles' hit single "All You Need Is Love" served as an anthem for the movement. On 25 June, the Beatles performed the song on the Our World international satellite broadcast, ensuring that the pacifist message reached an audience estimated at 400 million.
The avant-garde art of Milton Glaser, Heinz Edelmann, and Peter Max became synonymous with the flower power generation. Edelman's illustration style was best known in his art designs for the Beatles' 1968 animated film Yellow Submarine. Glaser, the founder of Push Pin Studios, also developed the loose psychedelic graphic design, seen for example in his seminal 1966 poster illustration of Bob Dylan with paisley hair. It was the posters by pop artist Peter Max, with their vivid fluid designs painted in Day-Glo colors, which became visual icons of flower power. Max's cover story in Life magazine (September 1969) as well as appearances on The Tonight Show Starring Johnny Carson and The Ed Sullivan Show, further established "flower power" style art into mainstream culture.
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