Hi Kathleen, If I were going to do it I would first drills some holes in the bottom for drainage. Then dig out enough to cover 3 sides and make sure that is filled in good and I would leave the drawer part exposed. Fill with soil and Plant as normal.
This is a neat idea, they did pots in various sizes and added wheels.
There are some really neat ideas out there!
Thank you for helping me out
Here is one way: https://www.hometalk.com/29444264/my-old-desk-drawers-turned-into-great-planters
Thank you for helpiñg me out.