Passho

Passho is a type of Berry that can be planted in the Farm. It can be obtained by surrounding an empty plot with at least 1 Oran, at least 1 Chesto, at least 1 Kelpsy and at least 1 Coba.

When a Passho berry is not surrounded by at least one other berry, there is a chance it may mutate to a Yache. On obtaining your first Passho berry, plant a berry (Kasib is a good choice) around it to avoid it unintentionally mutating and then needing to reobtain it.

Possible Planting Formations
You can fill your farm in the following way to obtain Passho berries. Purple squares indicate where mutations can occur.