plant something in something
1. Lit. to set out a plant in something; to sow seeds in something. Are you going to plant tomatoes in these pots? What have you planted in the garden?
2. Fig. to put an idea in someone's brain, head, or thinking. Who planted that silly idea in your head? I want to plant this concept in her thinking.
3. Fig. Inf. to conceal something in something. The crook planted the money in the back of the refrigerator. What did the cops plant in your pockets?