Red-twig dogwood is aptly named. The best red color comes into its branches in late winter/early spring -- just when the landscape is most in need of color. You can grow Cornus alba 'Elegantissima' if you want a cultivar with variegated leaves. Discover the ins and outs of red-twig dogwood here: http://landscaping.about.com/od/shrubsbushes/p/redtwig_dogwood.htm
Red-twig dogwood (http://landscaping.about.com/od/shrubsbushes/p/redtwig_dogwood.htm) punches up these urns with some festive color. The evergreen boughs and decorative white branches wouldn't be colorful enough. Alternatively, red bows could be used, but the dogwood branches gives you a natural means of color.
Love hummingbirds? There are many different flowering plants you can add to your garden or balcony to attract and nourish these beautiful birds. Have a look at the suggestions and see what would work in your yard. Hummingbirds, like bees and butterflies,