• Hollyhocks come in a variety of colors, shapes and sizes.Jupiterimages/Photos.com/Getty Images
  
  Hollyhocks make a soft or bold statement in the landscape with colors ranging from soft, pale yellow to black. Their blossoms typically take two growing seasons to fill the landscape with color, setting the roots and leaves before the flower buds appear. Stake tall hollyhocks to keep them from falling over.
  
  

Red

• Two red hollyhock cultivars, Nigra and Chater's Double Red, attract hummingbirds and butterflies with their colorful blossoms. Nigra is dark maroon to almost black in color, blooming July to August, while Chater's Double Red has bright-red, double flowers from July to September. Hollyhock Nigra prefers full sun, but will tolerate dappled shade in U.S. Department of Agriculture hardiness zones 2 to 9 and Chater's Double Red needs full shade in USDA zones 4b to 9a. Reaching up to 8 feet tall and 1 1/2 to 2 feet wide, Nigra hollyhocks like well-drained, moist soils. Give Chater's Double Red sandy, well-drained soil that is slightly alkaline to slightly acidic.
  
  

Yellow

• Majorette is dwarf hollyhock with delicate semi-double, 3-inch diameter, pale-yellow blossoms gracing the landscape from early spring to midsummer. Reaching 3 feet tall with a spread of 1 foot, it can fit into small gardens and containers. Grow Majorette in well-drained potting soil indoors and well-drained soil outdoors. Place both in full sun for the most blooms, while attracting bees and butterflies outdoors. Hardy in USDA zones 3 to 9, it prefers soil that is neither too sandy nor contains too much clay and moist to slightly dry.
  
  

Black

• Hollyhock cultivar Black Knight stands out in the landscape with its glossy, nearly black flared petals and red-yellow center. It blooms all summer in full sun, forming clumps reaching up to 6 feet tall and 2 1/2 feet wide. Black Knight is hardy to USDA zone 4. Plant it in well-drained, sandy, chalky or loamy soil with an average fertility level.
  
  

White

• Brighten up late summer and fall with Chater's Double Icicle. Bright white, double flowers bloom from July to September in USDA hardiness zones 4b to 9a. Give this hollyhock full sun and a sandy, well-drained, slightly acidic to slightly alkaline soil. It reaches a height of 5 to 10 feet and 1 to 1 1/2 feet wide, attracting bees and butterflies while in bloom.
  
  

Purple

• Queeny Purple hollyhocks have the distinction of being the first single-colored purple flower as well as the shortest hollyhock, reaching 1 1/2 to 2 1/2 feet tall at maturity, according to Colorado State University Extension. Unlike other hollyhocks, it blooms during the first year on multiple, compact, rigid stalks. During the summer in USDA hardiness zones 3 to 8, it blooms with frilly, 3- to 4-inch purple flowers. Grow Queeny Purple in well-drained, moist, fertile soil in full sun. It tolerates drought once established in the landscape and is tolerant of the juglone produced by black walnut trees.