Fallout 76's numerous types of irradiated flowers all have special uses, and chances are that you won't have just the right one when you need it. Toxic soot flower, for example, is handy for the Disease cure, so it would be wise to have a supply ready.
Fallout 76 Toxic soot flower is not a particularly rare type of item, but if you've run out and need some right away, we've prepared a few tips on where to grab them.
Fallout 76 Toxic Soot Flower
Your best bet when it comes to farming Toxic soot flowers in Fallout 76 is to visit the Toxic Valley region of Appalachia, as denoted in the picture above. More specifically, we'd advise you to look in the toxic dried lakebed, as well as close by the crashed space station, as Toxic soot flowers seem to grow there in droves.
Alternatively, we've heard that going to the east from Mama Dolce's Food Processing might net you a few of these flowers. Be sure to look around the front entrance to Wavy Willard's Water Park as well, just in case.
If you're in short supply of fireflies in Fallout 76, we've got a short primer on how to stock lots more in a short amount of time as well.