Whether you’re a pro gardener, a novice looking to flex your green thumb, or an urbanite with zero outdoor space, window boxes are a low-commitment way to grow summer plants, flowers, and herbs.

Caption: The Prestige windowbox has a water reservoir to fend off wilting. Credit: Windowbox.com Failing to water is the fastest way to kill plants, especially in window boxes and hanging baskets ...

The material, sizing, and type of container you use for your window boxes really matters—but Starnes and Jacobs warn against using wood options. "Keep in mind that for the plants in a window box to ...