In a blender, crush Oreos into a powder. Place 1/3 of the crushed Oreos into a new, clean flower pot. (If your pot has a hole in the bottom, you will need to plug it up first). Set aside.
Combine butter, cream cheese, sugar, and vanilla.
In a separate mixing bowl, combine the milk and pudding mix, and fold the Cool Whip into the pudding.
Fold the pudding mixture into butter and cream cheese mixture.
Layer 1/2 of the mixture over the crushed cookies in the pot. Cover the pudding mixture with 1/3 of the crushed cookies, then add the rest of the pudding mixture.
Push a few gummy worms partway into the pudding mixture and top with the remaining cookie crumbs.
Chill in refrigerator for 3 to 4 hours. Before serving, “plant” a few plastic flowers in the soil. You may want to serve it with a new, clean garden trowel.
