If they come to your door, you can always say you don't know about it. Ask them, does weed grow from seeds?
Then tell them that it's possible that your visitors dropped seeds while smoking?

I don't EVER say to lie. This is my only exception, to avoid prison. I lie to them cause they shouldn't be judging me for growing a plant.

Don't get paranoid if they knock on your door Sunday morning. Remember, the feds don't work on Sundays, but Jehovah Witness' do.