Chamaedaphne calyculata

Leatherleaf is the quiet constant of the northern bog. Chamaedaphne calyculata, the only species in the genus, is a low, thicket-forming evergreen of the heath family that ranges right around the cold northern world, from the peatlands of North America east to the bogs of Finland and Japan, and southward in this country to the pocosins and acid bogs of the coastal plain, as far as South Carolina. Across that vast range, leatherleaf forms the dense, spreading colonies that hold a bog together and shelter the wildlife within.

The common name comes from the foliage: small, leathery, evergreen leaves, dark green above and scurfy-brown beneath, that flush bronze in winter cold. In earliest spring, before much else stirs in the bog, leafy one-sided racemes of little white urn-shaped flowers line the arching stems, a heath in miniature. Some Native peoples steeped the dried leaves as a tea, though the plant belongs to a family rich in grayanotoxins, and the leaves were handled with care, the steeping done gently in a sunny jar rather than a hard boil, to keep the brew mild.

In the garden, leatherleaf is a specialist worth the trouble for anyone with wet, acid ground. Use the shrub at a pond edge, in a bog or rain garden, or in a peaty rock garden that stays moist, where the early flowers and year-round evergreen frame can be enjoyed. Pair with other acid-loving bog plants, cranberry, pitcher plants, and sphagnum, and let the colony knit slowly into the dependable green backbone of a wetland planting.