I had a news article from Interesting Engineering in my newsfeed titled "We can now 3D print as much wood as we want without cutting a single tree" https://interestingengineering.com/i...d-printed-wood It describes using plant cells from zinnias to create wood. The implication is that you could 3D directly print an object like a wood table using this process. It does not address finishing .
Don't shoot the messenger.