Only in Ultra Sun & Ultra Moon
SOS Encounter: Blush Mountain (15%)
Walk: Blush Mountain (10%)
Its base catch rate is 180 out of 255 (higher is easier); the catch rate calculator works out your odds with each ball. For the look, the best colour match is Ultra Ball or Level Ball.
Dedenne in every game · Pokémon Sun, Moon, Ultra Sun & Ultra Moon interactive map (Alola)