A new cultivar of Heuchera of hybrid origin, `Tiramisu`, characterized by its flat, orbicular-shaped leaves with unique coloration that changes throughout the growing season and with the temperature of the growing conditions. In the spring, the leaves are yellow-green to yellow and moderately mottled with red. In the summer, the leaves become greener with a silvery overlay. In the fall with cool temperatures, new leaves emerge that are yellow-green and heavily mottled with red with yellow-green margins and veins. `Tiramisu` is further characterized by its compact and mounded plant habit and its cold hardiness in U.S.D.A Zone 3.