Common perennial flowers are those that are generally easy to obtain and used by more gardeners than exotic plants. Perennial flowers are used for their ability to regrow season after season without need of replanting like annual flowers. These great choices are easy to come by in nurseries, seed catalogs, and in home improvement brick and mortar stores.
Hyacinth, Hyacinthus orientalis, is from the lily family and also called Roman hyacinth or Dutch hyacinth. It is a fragrant perennial that has 12 inch stalks with funnel-shaped flowers in red, white, blue, lavender, pink, or yellow. Leaves are strap-like and on the stalk. Flowers start bloom in spring. Plant this one in full sun for USDA hardiness zones of 3 to 6 and partial shade for USDA hardiness zones of 7 to 9. Propagate via offsets and grow in zones 3 to 9.
Hollyhock, Alcea rosea, is from the mallow family and is a butterfly attracting perennial. Leaves are rough and 1 to 2 inches long with flowers 2 to 4 inches wide and funnel-shaped. Flowers are red, pink, white, purple, or yellow. The entire plant will get 5 to 6 feet in height. Plant this one in full sun in well drained soil. Propagate via seed and grow in USDA hardiness zones of 3 to 9.
Burn plant, Aloe vera, is from the lily family and is also known as unguentine cactus, medicinal aloe, or Barbados aloe. It is an evergreen perennial that is drought tolerant and a succulent. Leaves are fleshy, grayish green and up to 18 inches long. Flowers are tiny, tubular, and yellow on stalks up to 3 feet tall. Plant this one in well drained soil in full sun or partial shade. Propagate via offsets and grow in USDA hardiness zones of 8 to 11.
Bleeding heart, Clerodendrum thomsoniae, is from the verbena family and is also known as glorybower, bleeding heart vine, and bleeding glory bower. It is an evergreen perennial that is vine-like. Stems get 15 feet long with 7 inch long leaves. Bell-shaped flowers are red and white, bloom in summer, and ½ inch wide. Plant this one in partial shade in a moist soil. Propagate via suckers, root cuttings, or tip cuttings and grow in USDA hardiness zones of 9 to 12.
Dahlia, Dahlia spp., is from the aster/daisy family and is a fragrant perennial. It can reach 4 to 6 feet tall with dozens of flowerheads 2 to 10 inches wide in white, red, purple, yellow, pink, or orange. Grow this one in full sun in a well drained soil that has manure soil additive in it. Propagate via division of tubers, seed, or basal shoot cuttings and grow in USDA hardiness zones of 8 to 10.