Growing flowers in full shade is a challenge to any gardener. Shady areas change over time as trees and shrubs grow larger producing growing areas that receive no sunlight. Low light levels cause competition with shading trees for the nutrients and water resources. Shady areas typically have poor air circulation. The best way to deal with areas that get no sunlight is to pick flowers that grow in full shade.
Impatiens (Impatiens wallerana) grows 6 to 36 inches tall and spreads 12 to 24 inches wide that grow in a mound shape. Impatiens produce bright colored flowers in full shade that include white, pink, red, orange and lilac colors. Impatiens blossom from July to October. This annual is used as a front border to a flower garden, a color spot or container plant. Elfin Mix and the Buzzy Lizzie Series are popular types of impatiens.
Wax begonia (Begonia semperflorens) grows 6 to 18 inches tall and spreads 8 to 10 inches wide. It grows in an upright clump of green or bronze leaves with large blooming flowers that are red, pink or white. This annual flower blooms from July into October. When grown from seed, it takes four months to reach the flowering stage. Wax begonias are used as flowerbed borders, container flowers and winter houseplants.
Pigsqueak bergenia (Bergenia cordifolia) is a perennial flower that grows 6 to 18 inches in height and 8 to 10 inches in width. This flower forms clumps of large, shiny evergreen leaves that develop a purplish color in winter. Clusters of pink flowers are produced every spring. Pigsqueak bergenia is used in rock gardens, in plant borders or as a contrast plant to small leaved plants.
Columbine (Aquilegia x hybrida) reaches 18 to 36 inches tall and spreads in a 24-inch-wide mound with upright flowers stalks. This perennial starts flowering in the spring and early summer with red, yellow, lavender and bicolor blossoms. Columbine is commonly used in plant borders and in hummingbird gardens.
Primrose (Primula spp.) grows 4 to 6 inches tall and foliage clumps spread 4 to 6 inches wide. This perennial produces blossoms in nearly every color framed by green leaves. This is a cool-weather flower that blooms in February and April. Primroses are used in rock gardens and flower borders. Plant primroses together to form masses of color in the shade.