The Fiend Rose is a rare and valuable resource needed to upgrade equipment. This guide on Where To Get Fiend Rose In Diablo 4 will tell you exactly what you need to do in order to get yourself some of this very rare flower. Although you can “need” it very early in the game, you won’t be able to reliably farm it until much later.
In the early stages of the game it is possible to come across a Fiend Rose, but literally, we mean one or two between levels 1 and 50. When you are exploring you will sometimes find Silent Chests, unique chests that are locked and require a key from the Occult trader in town to open. During our time playing through the game we opened several Silent Chests but only ever found a single Fiend Rose.