Window boxes with flowers arranged in this manner are purely for show--people outside can see the arrangement and you can also enjoy it from the comfort of the indoors. A window box arranged in this way is seen as a work of art. Even though window boxes are small, a mix of vibrant colors can still make it look amazing.
By combining fragrance with colors, you get a window box that not only looks amazing but also smells nice and can cause the room to be filled with a really amazing fragrance. You should try to intersperse the colorful flowers with the fragrant ones. Plants that could be planted in this sort of arrangement include lavender and peppermint, which are fragrant, and petunias and pansies that sport vibrant colors.
This style of flower arrangement is good if your window box gets partial or full sun. It aims to give the feel of a miniaturized mountain meadow. Its predominant features are traditional pastel pink, purple and white flowers mixed in with a hint of green.
As you would see in an alpine meadow, the flowers are usually very small, so it gives the effect of a carpet of color, rather than individual flowers. Recommended plants for this flower arrangement include primroses, candytuft, baby's breath and bellflowers. With this style of flower arrangement, color is everything, and you shouldn't be focusing so much on the fragrance, as it is unlikely that there will be any.
A window box with this flower arrangement is recommended if your window is in full sun for a majority of the day. It is also a good arrangement if you have a busy schedule and there's a chance that you might forget to water your plants every so often.
A window box arranged in this manner tends to be a little more edgy than your standard window box and may not be aesthetically pleasing to everyone who comes across it. However, the best thing about these sorts of plants is that they don't die that easily and last a lot longer than many other plants. Plants that you would use in this type of arrangement include small cacti, aloe vera and other desert succulents.