Window box planters are a blank slate.

If you know what to plant in window boxes, the design options are endless.

Window box planters are an affordable outlet to experiment with your creativity.

lush wood window box gray house angle

Credit: Adam Albright

Always check that your windowbox has drainage holes.

Next, fill the box halfway with potting soil, and add your plants.

ensure your plants are placed a few inches apart to give them room to fill out.

ivy topiary coleus and caladium in window box

Credit: Brie Williams

These are some of our favorites in each category.

Thrillers

These are your hero plantsthe ones that command attention and drive the rest of the design.

Spillers

Trailing over the side of the container, these plants add softness and a little romance.

window box with grass croton and sweet potato vine

Credit: Brie Williams

Fillers

Midsize plants bridge the space between thrillers and spillers.

5 Window Box Design Tips

Keep in minda few basic design principles, then unleash your creativity.

Use Repetition in Your Planting

Repetition is foolproof for how to plant window boxes with a cohesive look.

yellow exterior with herbs and flowers in window box

Credit: Brie Williams

Choose a Focal Point

Choosing the centerpiece first means the rest of your plant picks will fall into place.

This design started with a lemon cypress topiary.

Coleus bridges the colors of the foliage and the brick, and creeping wire vine loosens the design.

The form differences ensure each plant stands out despite the tightly packed box.

It’s filled it out withEnglish ivy, which also grows in the backyard, plus Spanish moss.

Stay Consistent

Try choosing asingle color palettefor all plantings around your house.

This window box planting uses green and white, with hints of yellow.