That means when the Guardians finally meet up with their Marvel hero friends in Avengers: Infinity War, roughly four years will have passed since the events of Guardians of the Galaxy Vol. 2, in which, we see Baby Groot.
So the question then becomes, how old will Groot be the next time we see him in Avengers: Infinity War and will we ever see Baby Groot again after Guardians of the Galaxy Vol. 2?
Yes, James Gunn recently confirmed that Guardians of the Galaxy 3 takes place after Avengers: Infinity War and Avengers 4.
You can get your fill of Baby Groot when Guardians of the Galaxy Vol. 2 hits theaters this weekend.