Instructions
Travel to Eterna Forest, located along Route 205 in the Sinnoh region. Roam around the forest. Players can expect to battle Silcoon in one out of every five random encounters in Eterna Forest, regardless of the time of day. Weaken Silcoon and throw a Pokeball to capture it. Take Silcoon to a Pokemon Center to heal it.
Go to Floaroma Town, located West of Route 205. Move north into Floarama Meadow, and search for another person in the area. Speak to him to purchase "Sweet Honey" for 100 Pokedollars. Purchase the Sweet Honey again to improve your odds of capturing Silcoon.
Move around the Sinnoh region. Players will encounter brown-colored trees. Move to the trees and press the "A" button to use Sweet Honey on the tree. Return to the tree in half a day. Players will commonly encounter Silcoon or its previous form, Wurmple. Silcoon appears between Levels "4" and "12." Weaken it in battle and use a Pokeball to capture it.
Capture Wurmple if it appears at one of the trees if you do not wish to use more honey to find Silcoon. However, Wurmple may evolve into either Silcoon or Cascoon at Level "7" depending on its personality values, which players cannot influence. Wurmple, like Silcoon, also appears between Levels "4" and "12" at the trees.