Heuchera is a perennial plant that grows shoots of flowers in the spring to summer called coral bells. There are between 50 and 70 species of Heuchera, with colors ranging from yellow to dark purple. The coral bells are cream to red in color and can last an entire growing season, depending on the cultivar. This hardy evergreen can be planted as an accent in your flower garden, in a container, or in an arrangement in your rock garden. They are generally easy to care for and hardy in gardening zones 4 through 9.
Water the Heucheras once or twice a week, totaling about 1 inch of water. They may need extra water when the weather is exceptionally hot and dry.
Top dress with about an inch of well rotted compost each fall. If your soil is not draining well, add some sharp sand to the dressing or work into the soil a bit. It is important that the soil drain well, especially going into winter, or it will cause the roots to rot or freeze up and die.
Mulch the plants in the fall with a pine needle or bark mulch. This will keep the soil warmer for the winter and also give the plant some nitrogen, which promotes good foliage color and thickness.
Remove the pine mulch in the spring and sprinkle some slow-release fertilizer on the ground around the plants. Do not allow the fertilizer to touch the crown of the plant. Water the fertilizer in well.
Mulch after fertilizing with an organic mulch to protect the roots from the hot sun. Heuchera roots are not very deep and do not like to get scorched.
Cut the root clump in half or more every 3 to 4 years with a sharp spade or knife. Replant both pieces of the plant. The crown grows up out of the ground and the plant will become thin and leggy if it's not divided and replanted. This can be done in the fall or spring.