Fiddlehead Fern is a forageable plant that appears in the Secret Woods during the summer season. It can be used in cooking to prepare dishes such as Fiddlehead Risotto, and is also an ingredient in the dyeing process for the loom. This fern can be sold for a modest price, or it can be donated to the Community Center to help complete the Chef's Bundle in the Bulletin Board room.
The item ID for Fiddlehead Fern is 259
This ID will work on PC/Mac (Steam), PS4, PS5, XBOX One, and Nintendo Switch.
Spawning items in Stardew Valley is a little unsual and is not done with commands. You will need to utilize what is called a cheat to set your character's or animal name to the item id. To do this you cannot use just the item id, you will need to surround the item id with brackets. Ex. [259]
Spawning Using the Animal MethodTo spawn Fiddlehead Fern while using an animal, you will need to head over to Marine's Ranch and purchase an animal. Once you have have an animal chosen, name the animal with the item id with brackets like this [259] and you will receive the Fiddlehead Fern item. This method can be done using an existing character and is convenient but will cost some gold every time you want an item.
Spawning Using the Character MethodTo spawn Fiddlehead Fern while using a character, you will need to create a new character and name it with the item id with brackets like this [259]. You will then receive the Fiddlehead Fern item when you speak to a villager. This method is easy and free but cannot be performed on an existing character and you will be stuck with that name unless its edited.