(Instagram l Marvel)
Most celebrities, when faced with the ALS Ice Bucket Challenge, brave the chill and (hopefully) make a donation. Vin Diesel is not most celebrities. After Guardians of the Galaxy director James Gunn challenged him to the infamous ALS Ice Bucket Challenge, Diesel accepted — but raised him one Plant a Tree for Groot Challenge. A lot of people thought he was joking. They were wrong.
Gunn knew his Guardians voice actor wasn't kidding around, though. 
After all, who could turn down a challenge to help everyone's favorite monosyllabic superhero? (Well, it would more specifically help our planet, but our planet's face isn't as cute as Groot's.)
And, of course, Diesel wasn't about to start a challenge without completing it himself. He posted a photo to his Facebook page, prompting some of his fans to grab a shovel and get digging too.
Currently, Diesel's Plant a Tree for Groot Challenge is gaining momentum on Twitter. As can be expected, environmental groups are all promoting the cause like crazy, but really, it's a challenge we can all get behind, right?
So will you plant a tree for Groot?
