The video then pans to showcase the towering tree in all its glory with little room left for a fairy topper.
"Go big or go home," she captioned the post alongside the apt hashtag '#aggressivechristmas'.
It seem her former husband Ben Affleck may also be responsible for the festive mix-up, as he was spotted tree shopping in late November with Garner.
"They spent time as a family, as they have done in the past," a source told People. "They got a tree, decorated, went to church [and] saw a movie."
Further proving Garner is no grinch, she also made sure to kit out the family's chicken coup in lights.
One thing's for certain, her children are sure to be expecting an impressive turn-out from Santa this year. So much room for pressies!