Repeatable - Solaceon Town, Pastoria City, Route 218 (various Berry patches) - Route 208 (Randomly received from the Berry Master) - Pal Park (score of 0-3000) - Held by wild Girafarig and Kecleon (5%)
Persim Berry (Bulbapedia)
theyre in solaceon town pastoria city & route 218
You can find them in Solaceon Town, Pastoria City, Route 218 and you can also get them on route 208 from the Berry Master.
Wild Girafarigs and Kecleons also have a 5% chance of holding one when caught.
Hope I helped!
(Source.)
