Flower power is a slogan

Slogan

A slogan is a memorable motto or phrase used in a political, commercial, religious and other context as a repetitive expression of an idea or purpose. The word slogan is derived from slogorn which was an Anglicisation of the Scottish Gaelic sluagh-ghairm . Slogans vary from the written and the...

 used by the American counterculture movement

Counterculture of the 1960s

The counterculture of the 1960s refers to a cultural movement that mainly developed in the United States and spread throughout much of the western world between 1960 and 1973. The movement gained momentum during the U.S. government's extensive military intervention in Vietnam...

 during the late 1960s and early 1970s as a symbol of passive resistance and non-violence ideology

Ideology

An ideology is a set of ideas that constitutes one's goals, expectations, and actions. An ideology can be thought of as a comprehensive vision, as a way of looking at things , as in common sense and several philosophical tendencies , or a set of ideas proposed by the dominant class of a society to...

. It is rooted in the opposition movement to the Vietnam War. The expression was coined by the American Beat poet Allen Ginsberg

Allen Ginsberg

Irwin Allen Ginsberg was an American poet and one of the leading figures of the Beat Generation in the 1950s. He vigorously opposed militarism, materialism and sexual repression...

 in 1965 as a means to transform war protests into peaceful affirmative spectacles. Hippie

Hippie

The hippie subculture was originally a youth movement that arose in the United States during the mid-1960s and spread to other countries around the world. The etymology of the term 'hippie' is from hipster, and was initially used to describe beatniks who had moved into San Francisco's...

s 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.