Following the events of “Guardians of the Galaxy Vol. 1,” Baby Groot is finally ready to try taking his first steps out of his pot - only to learn you have to walk before you can run.

Groot's catchphrase is famous, but the true explanation for it is an accidental mistranslation, from his first meeting with the Guardians.

Groot is a Flora colossus from Planet X, the capital of the branch worlds. The Flora colossi are tree-like beings, whose language is almost impossible to understand due to the stiffness of their larynxes, causing their speech to sound like they are repeating the phrase "I am Groot".

I Am Groot Episodes

As a Flora colossus from Planet X, Groot's language is nearly impossible to comprehend due to the inflexibility of his larynx, resulting in his dialogue consisting of solely one phrase.

Groot is an extraterrestrial tree monster who initially came to Earth seeking humans to capture and study. Groot was seemingly destroyed by termites used by Leslie Evans. Xemnu made a duplicate of Groot by making a human and tree hybrid that was used to fight the Hulk, but it was destroyed in the battle.

Just before Groot vanishes into dust, he shouts one final “I Am Groot.” One Twitter user wondered what Groot's final line meant and asked Gunn what he said. Gunn translated Groot's last word: “Dad.” Fans reacted in devastation to Gunn's confirmation.

Hailing from the Branch Worlds' Planet X, Groot is part of a species called Groot, so his name is also the title of his taxonomic classification. From the time he was a sapling, Groot was destined to protect the rights of the downtrodden.

Groot's final words of "I love you, guys" in Guardians of the Galaxy Vol. 3 signify the strong bond between Groot and the Guardians, as well as the bond between the audience and the characters.

The release of a new batch of I Am Groot episodes brought forth a major reveal, with season 2 ending changing everything that was known of Groot's MCU role, making him and his powers more important to the Marvel franchise than ever expected.

Based on what can be deduced about his species' aging, it is possible that Groot is around 14-18 years old in The Guardians of the Galaxy Holiday Special.