Gardeners generally love springtime because many flowering plant varieties start displaying buds or blossoms. Early blooming flowers can cheer up almost any landscape. If you would like to plant flowers that bloom in March, select varieties according to appropriate hardiness zone, flower color, intended use and general culture. Various flowers are in season in March.
Fragrant verbena (Abronia fragrans), also called sand verbena and hearts-delight, belongs to the four-o'clock plant family (Nyctaginaceae) and typically thrives in USDA Plant Hardiness Zone 8. Mature plants range from 8 to 40 inches tall. Long, white or light pink flowers bloom in round clusters from March through September. These blossoms open late in the afternoon and close again the following morning. Fragrant verbena plants prefer dry, sandy soils in partial shade positions. This perennial works well in woodland gardens, wildflower meadows and rock gardens.
The spider lily (Hymenocallis liriosme), also known as the spring spider lily, bears stems that reach up to 3 feet tall. Scented, white flowers appear from February through May. This Liliaceae family member also bears thin, green leaves that reach up to 30 inches long. Spider lilies naturally occur in bottomlands, ravines and savannas in USDA zones 7 to 10. This perennial plant tolerates various types of soils, but prefers wet soils in partially shady locations. Gardeners often plant the spider lily in wetland gardens, bog margins and perennial flowerbeds.
Dwarf Crested Iris
The dwarf crested iris (Iris cristata), a member of the Iridaceae plant family, ranges from 4 to 16 inches in height. Flowers bloom from March through May, featuring blue to violet petals with little beards sprouting along the central band. The dwarf crested iris grows well in USDA zones 3 to 9. This perennial prefers acidic, dry soils in partly to fully shady planting sites. Dwarf crested irises work well in woodland gardens, stream margins and shade gardens.
Drummond phlox (Phlox drummondii), also known as annual phlox, reaches heights up to 20 inches and ranges from 6 to 12 inches tall in cultivated gardens. This showy annual plant blooms from March through June, featuring clusters of pink, peach, purple, red or white petals surrounding light-colored central eyes. Drummond phlox also bears numerous branches and soft, hairy leaves. This Polemoniaceae family member tolerates various lighting and soil conditions, but prefers fertile, acidic soils. Winter hardy in USDA zones 3 to 10, the Drummond phlox performs well in containers, pocket prairies, low borders and wildflower meadows.
The birdcage evening-primrose (Oenothera deltoides), sometimes called the desert evening-primrose or the devil's lantern primrose, belongs in the Onagraceae plant family. White to pale pink flowers bloom from March through May, featuring petals that open near sundown and wilt the next morning. This showy night-bloomer reaches up to 10 inches in height and features stiff stems, leafy branches and woody seed capsules. The birdcage evening-primrose prefers dry, sandy soils that receive full sun. Hardy in USDA zones 9 and 10, this annual flower naturally occurs in the Colorado and Mohave deserts. The birdcage evening-primrose fits well in moon gardens and desert gardens.