A Nomel Berry will mature from a planted seed to a full-grown, fruit-bearing tree in 24 hours, with 6 hours per stage. A Nomel tree will yield 2-4 Berries.
Generation IV
A Nomel Berry will mature from a planted seed to a full-grown, fruit-bearing tree in 24 hours, with 6 hours per stage. A Nomel tree will yield 2-10 Berries.
At 100% performance, this Berry will contribute 150 units of powder.
Poffin Cooking
At 100% performance, a Nomel Berry can produce a level 11 (probably higher) Spicy-Sour Poffin when cooking alone.
In the anime
Nomel Berries in the anime
The Nomel Berry had a minor appearance in Pokéblock, Stock and Berry. Slices of it were handed out as free samples. Pikachu liked it, but Ash was overwhelmed by its sourness.
A Nomel Berry plant appeared in PK23. Oshawott showed Meloetta, Pikachu, and Snivy the plant in their search for a Rinka Berry, certain that it was a Rinka plant. When they told Oshawott it was the wrong plant, Oshawott stubbornly ate a Nomel Berry, only to find it was too sour. Meowth and Wobbuffet, who were following Meloetta, found the Berries and decided to eat them, only to be overwhelmed by its sourness.