From Bulbapedia, the community-driven Pokémon encyclopedia.
The Watmel Berry (Japanese: カイスのみ Kaisu Fruit) is a type of Berry introduced in Generation III. Its description claims that it can grow over 20 inches, making it the largest Berry; however, ones the player obtains are only 9.8 inches (25cm), behind several Berries such as the Kelpsy Berry (15 inches, 38.1 cm) and the Belue Berry, (11.8 inches, 30 cm).
Growth and harvest
A Watmel Berry will mature from a planted seed to a full-grown, fruit-bearing tree in 72 hours, with 18 hours per stage. A Watmel tree will yield 1-2 berries.
A Watmel Berry will mature from a planted seed to a full-grown, fruit-bearing tree in 60 hours, with 15 hours per stage. A Watmel tree will yield 2-15 berries.
At 100% performance, this Berry will contribute 250 units of powder.
At 100% performance, this Berry may produce a level 27 Sweet-Bitter Poffin.
In the anime
Watmel Berries in the anime
A Watmel plant appeared in PK23. Snivy used a Watmel Berry from the plant to lead Snorlax away from the hole which the Rinka Berry fell into, as it had rolled on top of the hole.
||カイスのみ Kaisu no Mi
||From スイカ Suika (Watermelon).
|| Baie Stekpa
||슈박열매 Syubak Yeolmae
||From 수박 subak, Watermelon.
||Refers to the muskmelon, but is most likely derived from 甜 tián (sweet) and 水瓜 shuǐguā (watermelon).