Flowerpower

9 clues
Sixties slogan
Hippies' slogan
Hippie-era slogan
1960s antiwar slogan
Woodstock-era slogan
Hippies' catchphrase
Hippies' '60s catchphrase
Peaceful ethic throughout the '60s
'60s-'70s passive resistance slogan
Similar answers:
Aflower
Airpower
Arethaflowers
Batterpowered
Beauteousflower
Bellflower
Bloomingflowers
Brandonflowers
Cactusflower
Candyandflowers
Cashflower
Cauliflower
Cauliflowerear
Cauliflowerears
Cauliflowereras
Christmasflower
Coneflower
Cornflower
Cornflowers
Cutflower