How soon do you put up your tree? I was told to always put it up the day after Thanksgiving. Well, I’ll tell you there is something about the holiday season that puts lots of joy & laughter in our lives. I remember as kid growing waiting for my to call my brothers & I out of the room so we could put up the tree & decorate it. That would make me so happy inside & I wanted to carry that tradition on to my family as well. so is it too soon to put up your tree the day after Thanksgiving, I say no. Do what makes you happy.