Sprinklotad

The Sprinklotad is a type of Oak Item. When equipped, it increases the chance of Berries replanting themselves if left to wither in the Farm. Unlike most other Oak Items, it is not unlocked by capturing unique Pokémon and instead can be bought from the Hoenn Berry Master in Mauville City. It also requires Farming Points to upgrade instead of Pokédollars.

Leveling Strategy
The most efficient way to gain experience for the Sprinklotad is to equip the fully-leveled Sprayduck, surround 4 Kasibs with Cheries in the following way and keep replanting Cheries as they die while either shoveling or harvesting extra Kasibs that sprout: