According to my research, you can take the fruit thingies off right now if you want. They're supposed to be dry. So ya if they're on the brown side, or even the black side, i'm gonna assume that they're dry
Whatcha can also do is keep the fruit on the plant, and peel them open to reveal the silky silver dollar like thingies inside them. I heard that they were very pretty!
There's a lotta names for that plant too! Money Plant, Honesty, Bolbonac, Moonwort, Silver Dollar or Lunaria annua are a bunch of them!
~Phoebe