Hi, I just built two large Cedar planter boxes for growing herbs. I was going to add a thin layer of gravel to the bottom followed by some plant safe mesh fabric. I have protected the entire box with a mix of food grade mineral oil and beeswax. I plan on applying a light stain on the outside for aesthetics. Being a Chef this mineral works great on cutting boards so thats why i used in this application.
Just want to know everyones take on using a plastic liner or not on the entire inside or box. And if so what type of lining material to use.