Container gardening isn't only for savvy urban gardeners and folks with limited space to grow, it can also be for folks who want to maximize their yields in a controlled environment. Not only does growing potatoes in a barrel reduce the amount of weeding and exposure to pests and fungi, you don't even have to risk shovel-damage to the tender potatoes by digging them out of the ground when they're done, just tip the container over!
After extensive research to plan my own potatoes-in-a-barrel, I've boiled all of the recommendations down to 4 simple steps to a winning potato harvest.
1. Select and prepare a container
You'll need to pick out a container such as a 50-gallon trash barrel or one of those half whiskey barrel planters. Alternatively, you can buy used food-grade barrels or commercially-available potato planters. Just about any 2 to 3-foot tall container will work, but be sure to select a container that either already has holes in it, or is okay to cut holes in. Next you'll want to clean your container with a mild bleach solution to get out any of the nasties that have been lingering in there. If you don't want to use bleach, you can make a bleach alternative to use instead.
Good drainage is critical for the cultivation of healthy potatoes so you'll want to cut or drill a series of large drainage holes in the bottom and bottom sides of your container. Alternatively, you can cut out the bottom altogether and place it on a well-drained surface like your garden bed.