No serious insect or disease problems. Frost heaving of roots may occur when winter temperatures fluctuate widely. Potential disease problems include powdery mildew, rust, and bacterial leaf spot. Potential insect problems include weevils and foliar nematodes.
More tolerant of hot and humid summers than most heucheras, Heuchera 'Caramel' is an exceptionally pretty variety of Coral Bells with a unique foliage of lobed, rounded leaves, emerging gray-red in spring and maturing to apricot-caramel with burgundy-red undersides by summer .