Does restraining evolution have a negative effect on stats once evolution finally occurs?

Question

I'm wanting to hold off on evolving a Shroomish into a Breloom so it can learn Spore. However, I am wary of the possibility of it missing out on stat gains it would have in its evolved form if I was to evolve it as soon as possible (i.e, gaining more attack per level up due to Breloom having much higher attack than Shroomish.)

I was hoping to confirm if holding off on evolution permanently affects stats or if its like Effort Values and nothing changes regardless of level.

Comments

Hey, a quality question! Once in a blue moon.

Answer 1

No, waiting to evolve will not effect the stats in the long run. I had the same dilemma myself when training a Breloom some time ago. I decided to hold off on evolving to get Spore and by the time my Breloom reached level 50, it had the same stats as a level 50 Breloom with the same EVs on Showdown! would have.

My findings were also verified by multiple sources on the Internet, including this one.

Answer 2

No.

Upon evolution, a Pokemon's stats are recalculated, based on the updated base stats, evs etc. There are no negative effects holding back evolution, apart from the possibility some moves may take longer to learn.

Comments

Does this apply Mystery Dungeon, too?