Wildberries - cadaverous-eris/Rustic GitHub Wiki
Wildberries are the fruit of wildberry bushes. They can be eaten, or used to make wildberry juice.
Wildberry bushes
Wildberry bushes spawn naturally throughout the overworld in many climates. They do not spawn in sandy biomes, savannas, mesas, cold biomes, snowy biomes, mushroom biomes, dead biomes, or wasteland biomes. The spawn frequency of wildberry bushes can be adjusted in the mod's config file. Wildberries can be harvested from fully grown bushes by simply right-clicking the bush. Breaking the bush also works, but then the bush must be replaced.
Using bonemeal on a bush that already has berries will cause the bush to spread to an adjacent block.
Wildberries
Wildberries can be eaten, but they are not very filling. However, they can be eaten faster than normal foods, and they grow very quickly. Wildberries can also be crushed into wildberry juice.
Wildberry Juice
Bottled Wildberry juice can be drank, filling a small amount of hunger and saturation with a chance of providing a regeneration buff, and a smaller chance of inflicting the poison debuff. Wildberry juice can also be brewed into wildberry wine.