You should start a keyhole garden Today's best articles Daily business briefing Solving COVID newsletter I'm always looking for ways to make gardening more streamlined, so when I stumbled across the concept of a keyhole garden, my interest was officially piqued. These garden beds look like raised beds â and it's no secret we love a raised bed â but they have an ingenious added feature that makes them even more efficient and easy to care for. Naturally, I needed to know more about keyhole gardening and whether it's as game-changing as it seems, so I reached out to a few master gardeners to pick their brains. Here's what I learned.