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]
(..) Not for you. Just a place to hang. The chef is great. The shows are good. There is a lot of whores coming in. What do you want from me? Tommy is a bad seed. What am I supposed to do? Shoot him? That wouldn't be a bad idea. I'm sorry I said that. I didn't mean it. It is just that he is scaring me. (..)1990 Goodfellas