This is a fashion that persists to a greater or lesser degree right up to the modern day. Pretty girls with flowers in their hair are almost a cliched image now - it's part of almost every female festival goers wardrobe and it's even one of the more popular filters on snapchat - but it started at Woodstock.
Two years before the festival, singer-songwriter Scott McKenzie had released 'San Francisco', a song containing the lines 'if you're going to San Francisco, be sure to wear a flower in your hair'. Plenty of the girls heading to New York that weekend decided to follow the advice even though they had a different destination in mind. Something about flower crowns spoke of being a child of nature, and it was a look that anybody could achieve without having to pay for it. Revelers who attend festivals like Coachella probably wish that was still the case today.