Bulbasaur's Mysterious Garden

During a battle, the bulb on Bulbasaur's back begins to glow. They rush it to the Pokemon Center where Nurse joy tells them that Bulbasaur is getting ready to evolve. Soon after Bulbasaur leaves its bed and is taken by other Bulbasaur to the mysterious garden where the Bulbasaur evolve into Ivysaur. They follow it to the garden where a Venusaur appears to start the ceremony. The rest of the Bulbasaur evolve, but Ash's refuses to. Venusaur and Ivysaur get mad and try to punish it, but Ash steps in the way. Then Team Rocket shows up, and they want Ivysaur and Venusaur.