Shuca

Shuca is a type of Berry that can be planted in the Farm. It can be obtained by planting Watmel and equipping the Sprinklotad. The Watmel will then have a chance to mutate into this berry. This berry can be bought from the Johto Berry Master for 10,000 if the player is running the "No Oak Item" challenge, and has already unlocked the Watmel berry.

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

Mutations
Shuca berries can be used to mutate the following berries.