I hope you enjoy puzzling out the following:
Free three months
Jump the flower.
Originate the coil.
Reverse the addendum and finish with a bell sound.
You're talking about
SPRING.
Free three months
The are three months in the season of spring; "spring" can also mean to free
Jump the flower.
Jumping is "springing", and flowers appear in spring; also, a spring, the body of water, is a "flow-er".
Originate the coil.
Both "originate" and "coil" are synonyms of "spring".
Reverse the addendum and finish with a bell sound.
P.S. is an addendum; a bell sound is a RING. Reverse and concatenate to get SPRING.