Grown in hundreds of varieties, each flower has its own shape, size, color and growing requirements. Some flowers are perennial, meaning they come back each year fuller and healthier, while other flowers are annuals to bloom only one season before they die down. Flowers typically require well-drained soils and full sun to partial shade to flourish. Tucked within a garden border or bed, or nestled in containers, flowers create bright bursts of color among the garden.
Rose campion (Lychnis coronaria) is a perennial flower that grows 1 to 3 feet tall and wide. The gray-green leaves are spear-shaped and grow in a low mounding form. The spring-blooming magenta flowers on rose campion are five-petaled and grown on 2 foot tall stalks. Disease-resistant, rose campion flowers are ideal along a rock garden. Rose campion flowers prefer full sun to part shade and well-drained soil. The USDA hardiness zones for planting are 3 to 9.
Red Hot Poker
A summer-blooming perennial, red hot poker (Kniphofia uvaria) has fiery flower blooms. The flowers grow on upright spikes that come in a wide range of colors, including orange, red, yellow, apricot, ivory and yellow. The tall leaves on red hot poker are long and sword-like. Red hot poker flowers grow 36 to 60 inches tall and are ideal nestled along a front walkway or perennial border. Red hot poker flowers prefer full sun and well-drained soil. Plant in USDA zones 5 to 9.
Rose mallow (Hibiscus moscheutos), a variety of hibiscus, is a perennial flower with large flower heads. Rose mallow grows 18 to 24 inches tall and begins blooming in summer to last until the first frost. The large blooms grow up to 12 inches wide and in colors of red, white and pink. Rose mallow is a native perennial to wetlands and creeks. They prefer full sun to partial shade and moist soil that is nutrient-laden. The USDA zones for planting are 4 to 9.
Rocky Mountain Columbine
Rocky mountain columbine (Aquilegia caerulea) is a perennial flower with a clump-like growth habit. The flowers on rocky mountain columbine are blue and white to create a showy flower border. Rocky mountain columbine emerge in late spring to last into the summer. Growing 1 to 3 feet tall and wide, rocky mountain columbine prefers full sun to partial shade to thrive. Rocky mountain columbine flowers require well-drained, moist and fertile soil. USDA zones for planting are 4 to 7.