Wandering Pokémon

Farms with at least one ripe Berry can attract Wandering Pokémon that are automatically caught without the use of a Pokéball. Some Berries can attract rare Pokémon and can thus be used strategically to complete the Pokédex. Wandering Pokémon can also be shiny, attracting a shiny Wandering Pokémon when the Farm has at least one open plot is the condition for a Starf Berry to spawn on the Farm (in one of the open plots).

Table of Wandering Pokémon
Note: As of version 0.8.9, Flabébé (Yellow) and Flabébé (Blue) can only be obtained as Wandering Pokémon.

Strategy and Wandering Pokémon Rates
The Base Wandering Pokémon Rate is 0.0005 or 1/2000. As the game checks for a Wandering Pokémon every 1.5s, the Rate of finding a Wandering Pokémon on a single plot is approximately 1/3000s. This rate can be heavily modified in the following ways. First, each plot that meets the requirement for a particular Wandering Pokémon is counted individually. Second, Roseli Berries have an Attract Aura that can further modify the Wandering Pokémon Rate multiplicatively. Below are some examples illustrating how incorporating these two techniques can improve one's odds of encountering Wandering Pokémon.

Example 1: 1 Cheri Berry on Farm, highest region is Johto - Rate = 1/3000 Chance of encountering Tangela, Scyther, Pineco, or Heracross Example 2: 25 Cheri Berries on Farm, highest region is Johto - Rate = 1/120 Chance of encountering Tangela, Scyther, Pineco, or Heracross Example 3: 25 Liechi Berries on Farm, highest region is Sinnoh - Rate = 1/120 Chance of encountering Tangela, Scyther, Pineco, Heracross, Volbeat, Illumise, Burmy (plant), Combee, Cherubi, Munchlax, or Manaphy