Pvs2 on ps3 ?

If you are referring to Garden Warfare 2 as opposed to Plants vs Zombies 2, which is a cute and goofy variant on the "tower defense" game genre, then the answer is "No" GW 2 is not going to be published on the PS3.

When the game first launched they realized that the PS3 simply did not have the power required to run the game as it was made and the decision was made that they would not produce an alternate scaled down and inferior looking copy of the game for the PS3 system and released only for the PS4 which was capable of running the game as intended.