Board Thread:False Info and Speculative Discussion/@comment-24782789-20140621151955/@comment-4091815-20140621213328

I'm just giving you the conditions that were present at the time.

Also, having seen that Derek buried Laura on the property surrouded by Wolfsbane suggests it was traditional or ceremonial or something of the like.

Derek also says that wolfsbane would heal Isaac's internal injuries inflicted by the Alpha Pack - suggesting that it can heal above and beyond regular Werewolf healing.