The Gym was created by Ramos from the plants he had collected, and contains a giant central tree, on which a vine-based obstacle course has been built, which includes climbing up and down the vines, as well as swinging on them to get from one platform to another. Once the player has ascended to the top of the obstacle course, Ramos may be challenged. After he is defeated, a gate will open next to him, having a slide back to the bottom.
Appearance
This section is incomplete. Please feel free to edit this section to add missing information and complete it. Reason: Needs a complete layout map
The Coumarine Gym appeared in The Green, Green Grass Types of Home!, being located on the top of a giant tree near Coumarine City. Located in the same place were also Ramos's garden and library.
Before starting the Gym battle, Ramos had Ash and his friends drink some tea and help him in his garden. During the Gym battle itself, Ash used his Fletchinder, Hawlucha, and Frogadier against Ramos's Jumpluff, Weepinbell, and Gogoat. After an eventful battle, Ash eventually emerged victorious when his Frogadier defeated Gogoat, earning Ash his fourth Kalos League Badge, the Plant Badge.
The Gym appeared again in Under the Pledging Tree!, where it was called the Pledging Tree (Japanese: 誓いの樹Vow Tree). According to a legend, a Trainer and his Pokémon, who had traveled far and wide before eventually settling down to the future location of Coumarine City, had planted the tree long time ago. Once a year, people of the city hold a festival under the tree, where Trainers give presents to their Pokémon to celebrate their bonds with them.
Jumpluff was sent out and used Sunny Day to get rid of the snowstorm caused by the angry Vanillish and Vanilluxe, which allowed Sunflora to use Solar Beam on the ground to melt the snow.
Jumpluff was also the first Pokémon that Ramos used during his Gym battle with Ash, sending it out to face Ash's Fletchinder. Even though it was able to boost its Defense and Speed to withstand and avoid Fletchinder's attacks, the Ember Pokémon managed to boost its own Speed with Flame Charge so that it was finally able to reach Jumpluff and defeat it.
Weepinbell was the second Pokémon that Ramos used during the Gym battle with Ash. Despite being at a type disadvantage, it managed to defeat both Ash's Fletchinder and Hawlucha, partially thanks to the poison inflicted on them by its Poison Powder. However, it eventually fell to an Aerial Ace attack from Ash's Frogadier.
Ramos has a Gogoat as his main Pokémon. It was first seen with its Trainer when Ramos met Ash and his friends arrived after Clemont accidentally destroyed Ramos's gate. It was later seen in the city when the snowstorm began. It used Vine Whip to rescue Ash after he was trying to calm down an angry Vanillish and Vanilluxe who caused the snowstorm, whom attacked him. After they and a Vanillite were captured by Team Rocket's mecha. It used its powerful attacks to defeat the mecha, along with Luxio, Fennekin, Pikachu, and Frogadier.
Gogoat was also the last Pokémon that Ramos used during Ash's Coumarine Gym battle, sending it out to face Ash's Frogadier. During the battle, Gogoat demonstrated its strong Grass-type attacks, which were almost enough to defeat Frogadier, until Ash recalled a lesson that Ramos had taught him about gardening, and used it to come up with a winning strategy, allowing Frogadier to eventually defeat Gogoat with a Water Pulse.