The government's policies 'planted/sowed the seeds of' war/destruction. [=created a situation that led to war/destruction]
Her comment 'planted/sowed a seed of' doubt in his mind. [=caused him to begin to have doubts]
She grows her plants 'from seed'. [=by planting seeds rather than by some other method]
(..) I was already prepared. I'm still frightened. It is in the interests of the northmen to have a reputation as great warriors. It's half the battle. It sows the seeds of fear in those who oppose them. But, believe me... I'm not afraid. I don't believe in their reputation. (..)2017 TvShow: Vikings Title: Revenge Season: 4 Episode 18