My dad was an avid gardener. He used to plant/grow seeds in the attic, and then move them into the yard. He did this all to "breed a very delicate kind of flower".

At a later age I learned this was pot. Where I live that's legal, so it's not such a big deal, but I still have some pretty awesome child-pics of me playing in a yard full of weed. 

tl;dr: treesome baby.