The ideal plants for window boxes are colorful, can withstand hot sun or part shade and don't have finicky watering requirements. Here are ten that fit those criteria.
1. Sweet Potato Vine
This climber is perfect for containers since it creeps down over the edge. It grows very fast and is the prettiest bright yellow green.
2. Fiber Optic Grass
This annual reminds me of those glow sticks sold at amusement parks. It adds a lot of texture to your container.
This is a dark green spiky foliage that adds height to the back or sides of your container. It can grow fairly tall, but grows slowly. This can be moved indoors for the Winter.
4. White Licorice Plant
This fuzzy, silvery-white plant adds texture and looks best in the front of the container since it grows low and wide.
5. "Blazin Rose" Iresine
This highly tolerant plant can grow up to 18 inches tall and adds a bright spot of color. In my case, it accents the color of the window box nicely.
6. Babylon Red Verbena Hybrid
This plant is light and airy with tiny bobs of red flowers that attract butterflies. It's a great choice for the front of a container as it spreads out rather than growing tall.
This plant comes in several color varieties and is an easy choice for a container filler. I chose the yellow green variety and the red and green tiger leaf variety.
8. Frosted Curls
This grass offers fabulous shimmering texture that is said to look like a waterfall when the wind blows through it.
9. Summer Snapdragon
These grape scented blooms add beautiful height and a lovely purple color to a window box. They are also long lasting as cut stems for your kitchen table.
Salvia is first cousins with the sage and offers beautiful tall shoots of purple color. I did not end up planting the salvia because the roots were infested with bugs and worms when I took it out of its container.
Note: Be sure that all of your plants are healthy when putting them together in one container as any disease or infestation can and will easily spread.
(Re-edited from a post originally published on 6.17.2010 - CM)
(Images: Tanya Lacourse)