Coral bells (Heuchera spp.) are mounding plants with spiky flowers that are native to North America. There are more than 50 species of coral bells, and hundreds of varieties. These perennial plants grow in bushy rosettes with rounded leaves and clusters of tiny, bell-like blooms on long stems. Coral bells can tolerate heat and drought, and are easy to propagate by division.
'Cherries Jubilee' is a newer heuchera variety, patented in 2000. It has ruffled, mottled-brown leaves that are a contrast to its cherry-red blooms. It grows in USDA Hardiness Zones 4 to 9, and is 12 to 16 inches tall and wide. 'Cherries Jubilee' flowers in June and July. It prefers full sun in cooler areas, but will need afternoon shade farther south.
'Raspberry Regal' has green to dark-purple leaves that sometimes are veined with silver. Its raspberry-red flowers bloom in June and July. 'Raspberry Regal' grows in USDA zones 3 to 8, and it prefers full shade. According to the University of Vermont Extension, it is one of the best coral bells for cut flowers. 'Raspberry Regal' grows 18 to 30 inches tall and 12 to 18 inches wide.
'Lime Rickey' is a brightly colored heuchera variety that grows 9 to 18 inches tall, and spreads 12 to 18 inches wide. Its white blooms appear in June and July, sprouting from the mound of ruffled, lime-green leaves. According to the Missouri Botanical Garden, 'Lime Rickey' is a cross between 'Amber Waves' and 'Huntsman.' It grows in USDA zones 4 to 8, and it prefers full sun to part shade.
'Georgia Peach' is an excellent variety for hot and humid areas, according to the University of Illinois Extension. It has large, peach-colored leaves mottled with silver blotches and red veins. It grows to 2 inches wide and 14 inches tall. Small white flowers appear in late summer. 'Georgia Peach' grows in USDA zones 4 to 8 and needs part sun to light shade.
'Snow Storm' is a variety of Snow Angel coral bells with variegated foliage. It grows in USDA zones 4 to 8, and it blooms in June and July. 'Snow Storm' has cerise-red flowers and medium-green leaves splashed with white. It grows to 2 feet tall and 1-1/2 feet wide. It can handle full sun in the northern parts of its growing area, but will need afternoon shade in the south for the best foliage color.
'Mt. St. Helens'
'Mt. St. Helens' has large, cardinal red flowers and small medium-green leaves. It grows 1 to 2 feet tall and 1 to 1-1/2 feet wide, and it blooms in June and July in USDA zones 3 to 9. It prefers four to six hours of sun.