Re: How to get Wolfsbane in Base game (No Cheats)

@SnwySpiritWolfsbane can be found growing in the world/town of Forgotten Hollow, but you'd need the vampire pack to get there. Considering you only need wolfsbane to cure vampirism or lycanthropy, I think you'd be best to cheat this one if you only need it to complete your plant collection; it seems to be the best way after you've seemingly exhausted your only other possibility.

EDIT 1: If you have the werewolf pack, you can also find it in Moonwood Mill.

EDIT 2: This post describes wolfsbane being found in the "debug" section, which once placed on your lot, I would assume would allow you to plant it and thereby harvest it "naturally" with your sim: https://www.reddit.com/r/Sims4/comments/vnvnxw/wolfsbane_in_base_game/ 

Good luck and happy simming!