No, he never evolved him.
There came a time when he could have evolved but Bulbasaur decided not to.
Yes he/she evolves at level 16.
Bulbasaur does not evolve with a stone. Bulbasaur needs to get to a certain level, then go to "Luminous spring", select Bulbasaur, then select "evolve". If YOU are Bulbasaur, then you must get Manaphy and Palkia to join your team, and then go to "Luminous spring".
Bulbasaur does not evolve during the Pokemon anime series, there is an episode where Bulbasaur is about to evolve, but he restrains himself from doing so, because it didn't wish to evolve
Ash's Pikachu, Squirtle and Bulbasaur have never evolved and they never will.-Pikachu is a main character and therefore his appearance changing would be a ton of extra work, also it would not look right for the main character to change.-Bulbasaur and Squirtle are no longer with Ash and Bulbasaur currently resides at Professor Oak's lab while Squirtle stays with the Officer Jenny in charge of the Squirtle Squad.To evolve a Pikachu in-game, use a Thuderstone on it.To evolve a Bulbasaur, level it up to level 16.To evolve a Squirtle, level it up to level 16.As seen in "Bulbasaur's Mysterious Garden" Bulbasaur tried hard not to evolve.In the episode "Electric Shock Showdown" Pikachu had a chance to evolve into Raichu, but did not want to.Ash's Squirtle has shown no opinion towards evolving further but because of its ties to the Squirtle Squad and its friends there, it's unlikely it will evolve.
No, Ash's Scraggy will not evolve.
No, Ash never evolves his Bulbasaur into Ivysaur and then into Venusaur.
well ash's squirtle will never evolve because of the squirtle squad and his bulbasaur chooses not to evolve, in episode 51 bulbasaur was going to evolve along with a large group of other bulbasaur but it chose not to, so it never will.
No, Ash's Bulbasaur never evolves into Ivysaur and so on. He is actually the first of the few of Ash's pokemon whom choose not to evolve, including Pikachu and Squirtle.
Yes he/she evolves at level 16.
No, Ash's bulbousaur does not evolve, but May's does.
No
yes
No
yes it does
As of now it is yet to evolve, if ever.
Yes
he was thinking about it but never did