If your garden is overflowing, be a good neighbor and 'spread the wealth'. [=give some of what is growing in your garden to neighbors]
He's known as a comic actor, but he's 'spreading his wings' and trying a serious role in his new movie.
The plant will 'spread'. [=the plant will produce more plants in the area around it]
(..) - My father was a great man! - Your father was a swine! Drink it, it will contain the curse to your hand, for the time being. - It will spread, Albus. - How long? Maybe a year. Don't ignore me, Severus. We both know Lord Voldemort has ordered the Malfoy boy to murder me. (..)2011 Harry Potter and the Deathly Hallows: Part 2