Start with a Sturdy Planter
Anytime you’re hanging a window box and growing plants in it, you need a sturdy planter that’s firmly secured. When you’re looking for a box, choose one made with durable wood such as teak or redwood. Attach it to the wall with steel L brackets that are a couple of inches shorter than the width of the box.
Choose the Best Plants
When you’re planning an edible window box, choosing what you like to eat is most important. But if you can, it also helps to grow a variety of plants that look nice together. Most veggies and herbs need full sun to thrive, so set up your window box where it’ll get at least six hours of direct sun every day, then fill it with a focal point plant, spillers, interesting textures, and a variety of colors. Water whenever the soil is dry to the touch.
Pick a Focal Point
At the center of your planter, you want something that will draw the eye. In this window box arrangement, ‘Pesto Perpetuo’ basil grabs attention right away thanks to its upright growth and variegated leaves. This variety also doesn’t flower, so it’ll just keep producing edible leaves all summer long.
Plant Compact Vegetables
Naturally, you don’t have much space growing veggies in a window box, so you want to make the most of the room you do have with plants that stay relatively compact. ‘Tumbling Tom’ tomatoes spill over the edge of the box, adding interest and producing sweet yellow cherry tomatoes you can pluck off and add to salads. This variety is also good for growing in containers and hanging baskets!
Add Color Contrast
Green is nice, but there are edible plants in other colors you can add to your box to give it some contrast. This combination includes purple sage, red-veined sorrel, and purple kale. These herbs and greens all stay relatively compact as they grow, but you can reach out and grab a few leaves whenever you need to add some extra color and flavor to your meal.
Fill in with Texture
For the last few spots in your box, choose herbs that will add texture. Spearmint, lemon thyme, and oregano all spill out the edges of this box, while rosemary fills a gap toward the middle with its upright growth. Using a variety of heights and leaf shapes will make your box look fuller and also give you plenty of options for adding to your cooking.
