In Animal Crossing New Horizons, you can accidentally cut down a tree if you eat a fruit and use the Flimsy Axe on a tree too many times. You can also cut down trees using the Axe on the third swing. Unfortunately tree stumps do not grow back so you have two solutions! You can either leave it there and use it as a stool or you can use your shovel and dig it out. *NOTE: If you leave it alone and choose not to dig it up, you can sometimes find bugs on the stumps.