They really don't like to be scorched or dried out, so a cool situation, part shade suits them best. Ideally they can be replanted in fresh soil every few years. There are many new cultivars, which due to the vivid colours which some possess, may be difficult to place into a garden setting! More established cultivars like 'Palace Purple', 'Obsidian' and 'Ruffles' may be easier to start with.
Although individual flowers may be small, they grow in spikes that erupt from the leaves with foamy abandon and attract pollinators, from bumblebees, to hoverflies and butterflies, in fact anything that is happy foraging in shady spots. In such places the supply of nectar and pollen from other plants can be rather limited, so heucheras play an important role. The distinctive foliage grows in mounds that serve as ground cover for invertebrates and amphibians.