Sprout Tower is a towering pagoda where Sages teach that all living things coexist through cooperation. Since these monks also train Pokémon, it's a good opportunity to train before challenging the Violet Gym.
Battle Sage Nico and climb down the northeast ladder.
Grab the Parlyz Heal, fight Sage Chow, and climb up the western ladder.
Collect the X Accuracy and climb the southern ladder.
Pick up the Potion and head north. It seems that Elder Li has just been defeated by Silver. The elder scolds him for being too harsh on his Pokémon, then Silver leaves via an Escape Rope. Grab the Escape Rope to the east, then speak to Li to be drawn into battle.
Li rewards you with TM70 (Flash), which illuminates certain areas. Use the Escape Rope to exit the tower, and set out for the first Gym.
Violet City Pokémon Gym Leader: Falkner
The Elegant Master of Flying Pokémon
The Violet Gym specializes in Flying-type Pokémon. Clip their wings with Electric attacks, or knock them out of the sky with Rock moves. The traded Onix will be a big help, and Mareep can be found on Route 32 to the south. Avoid using Grass and Bug Pokémon. Falkner will use Roost often, so be ready for a long battle. Being slightly overtrained for this gym is a big help, as the more damage you can do in one shot, the more turns Falkner will waste using Roost, or less. Step onto the wooden platform to reach the elevated walkway. This S-shaped battlefield has a Gym Trainer at each end, but it is possible to avoid both and reach Falkner immediately by traveling along the glass tiles on either side.
Defeated, Falkner awards you the Zephyr Badge, which ensures obedience from all Pokémon up to level 20, and enables the use of Rock Smash in the field. He also hands over TM51 (Roost) as a prize. Roost restores 50% of the user's maximum HP, and Flying-types that use it are treated as non-Flying-types until the next turn.
Elm calls when you leave the Gym, and asks that you speak with his aide inside the Poké Mart. The aide asks that you take care of the Mystery Egg, which will eventually hatch into a Togepi with the special Extrasensory move. The professor will call again when the Egg hatches, asking to see it; visit him with Togepi as the lead Pokémon to receive an Everstone.
Kimono Girl 1
Upon leaving the Poké Mart, you meet one of the Kimono Girls, five sisters from Ecruteak City's Dance Theater. She shows an interest in the "important" Egg, and asks that you take good care of it before leaving to the south.
The next destination is Route 32 to the south, but detour to Route 36 in the west first. Speak to the man to receive HM06 (Rock Smash), a move that can now be used anytime in the field, thanks to the Zephyr Badge. On Thursdays, Arthur of the Week Siblings can be found here; speaking to him will result in a Hard Stone on the first meeting, and a Careless Ribbon on subsequent meetings.