Flower species native to America originated throughout the United States. They are fully adapted to the local climate and ecology of their particular regions, like the lantana, often found by settlers in the coastal climate of Jamestown, Virginia. Native flowering plants were documented as early as the 18th century by settlers in the U.S.
Lantanas (Lantana spp.) are annual American flowers that display single or multicolored blooms in orange, pink, yellow, cream and white, with green foliage, according to the Clemson University Extension. Thriving in full sun, lantanas prefers warmer temperatures and nearly any soil type that is slightly acid and well-drained. The lantana is tolerant of salt. With a rapid growth rate, these American flowers grow to a height of 5 to 6 feet with a width of up to 4 feet in certain cultivars, but remain lower to the ground at 1 to 2 feet in height in other cultivars.
Salvias (Salvia spp.) are annual American flowers that display fragrant green foliage and vivid columns of spiked blooms in all colors of the spectrum except green, according to the Clemson University Extension. Thriving in full sun to partial shade, salvias are typically drought-tolerant, preferring well-drained soil. Salvia flowers are very attractive to hummingbirds and butterflies. With a rapid growth rate, these American flowers grow to a height of 5 to 6 feet within one growth season.
Daylilies (Hemerocallis spp.) are abundantly blooming perennial American flowers that display blossoms in a vast array of shapes and colors. They come in just about every hue of the spectrum, with green foliage, according to the Clemson University Extension. Thriving in full sun to light shade, daylilies are typically drought- and flood-tolerant, preferring slightly acid, well-drained soil with a pH of 6 to 6.5. Daylilies will bloom during the same year they were planted, but full growth takes approximately three to four years. These American perennials reach a height of 8 inches to 5 feet, with blooms growing to a diameter of 2 to 8 inches.
Shasta daisies (Leucanthemum x superbum) are perennial flowers native to America. They display circular white or yellow blooms, with yellow centers and green foliage, according to the University of Illinois Extension HortAnswers. Thriving in full sun to light shade, shasta daisies need to be kept out of wet sites, particularly during the winter months, and prefer moist, well-drained soil. These American perennials reach a height of 1 to 3 feet.