Flowers provide brightness, calm & beauty. Did you know it is possible to successfully grow flowers for even the smallest outdoor space? Many times, I hear people say they love flowers, but, do not feel they have sufficient outdoor space. Balcony Container Gardening list 25 variety of flowers to easily grow on your balcony. Tulips, azaleas, pansies, sunflowers, peonies and many more can transform a space void of color to one that bring smiles.