Hallo there, I think this is the original version of the song.
Have fun, it’s just easy to playing ;)



Enter on A 


F#m        D        A       E
If you?re going to San Francisco,
F#m        D            A             E
be sure to wear some flowers in your hair.
F#m        A       D       A
If you're going to San Francisco,
A         C#m       F#m            E
you're gonna meet some gentle people there.


F#m            D       A       E
For those who come to San Francisco
F#m       D        A            E
summer time will be a love in there.
F#m     A          D      A
In the streets of San Francisco,
A         C#m       F#m               E
gentle people with flowers in their hair.


G                   
All across the nation,
F#m G                      A                                            
such a strange vibration, People in motion.
G                        
There's a whole generation,
F#m G                    A                 E                   
with a new explanation, People in motion, people in motion.


F#m            D       A       E
For those who come to San Francisco,
F#m            D       A       E
be sure to wear some flowers in your hair.
F#m     A          D      A
If you come to San Francisco,
A         C#m       F#m         E
summer time will be a love-in there.


F#m     Abm     B     E     B
If you come to San Francisco
B      Ebm     Abm        B
Summertime will be a love-in there