1) Experimenting with different plant varieties. The coleus plants below provide variety in foliage color.
Different color foliage mixed with flowers and trailing varieties.
All edible plants in this box.
Trailing greenery dress up this garage.
This looks like the purple foliage of Wandering Jew mixed with deep pink petunias and white flowers.
Purple trailing flowers against a blue house look stunning.
Oversized boxes with large blue hydrangeas and greenery are elegant.
Beautiful boxes on a blue facade in Germany are the epitome old world charm.
All peaches, yellows and corals.
Beautiful color against a boldly painted wall.
Do you live in a desert region? Mix succulents in various colors. These are beautiful!
2) Use an unexpected set up, unusual materials or repurpose other containers for your window boxes such as in the pictures below.
A champagne crate is repurposed as a window box.
This box is made of wood shims that look to be painted with a colorwashing technique.
A wood shelf with cutouts to hold flower pots works as a window box.
Lattice panels make up this window box.
Galvanized tubs pull double duty growing herbs in the kitchen window.
Not sure what these boxes are made of, but they have a metal or weathered wood appearance which makes them stand out.
Wicker baskets act as window boxes here.
Boxes painted in a bold color to compliment the trim.
3) Window boxes don't always have to go on windows. Display them in unusual places for an unexpected pop of color.
Decorate a porch railing.
Adorn a stone retaining wall.
Flank a front door.
Add color to small dormers in a steep roof.
Hang a box on a railing. This is also a great idea for a fall display.
Crates with the bottoms knocked out or shadow boxes could be used to shelve potted plants in these unusual boxes that are also not in a window.
4) Decorate them seasonally for interest all year long.
This is just plain pretty. Enough said.
White boo pumpkins amidst fall foliage colors.
A Christmas or winter box. Apples, pine cones and greenery.
Greenery, ornaments and bare branches.
And here are my masterpieces this year: coleus in a color called Sedona in the center, flanked by light and dark purple petunias with light purple lobelia at the ends of the box. The lobelia will fill in and spill over the sides in time and the coleus will eventually rise above the other flowers.
I hope you have seen enough to be inspired.