"I don't think you want to plant a seed in his head that he can't hit lefties."
I was just trying to plant a little idea in your head.
Maybe some of the stuff I'd planted in her head was having a good effect on her.
Transistors had been planted in his head, he said, and frightening news was coming through.
Let him think that he's able to plant these ideas in your head.
Now you must eat something, Bib planted in her head.
She looked very confused, though, and Olive could tell she'd planted the seed of doubt in the woman's head.
"I wonder who planted that idea in his head?"
The bud of an idea planted itself in Susan's head.
They kind of have that seed planted in their head already.