Leatherleaf viburnum is a large semi-evergreen shrub native to central and western China. Its bold, dark-green corrugated leaves—covered on the underside with thick gray-white wool—provide year-round structural presence unusual in a broadleaf shrub rated hardy to zone 5. Flat clusters of creamy white flowers appear in late spring, followed by red berries that ripen to black by fall.
It grows 8–15 ft tall and wide, establishing quickly as a screen, windbreak, or woodland backdrop. At least two plants within 10 ft of each other are needed for reliable cross-pollination and fruit set. It tolerates moderate shade but produces more flowers and fruit in full sun. Maintain slightly acidic to neutral pH and mulch the root zone to retain moisture during establishment. In zone 5, foliage may partially drop in hard winters but reliably returns in spring.
The black fruit is taken by birds in late fall and early winter, extending the plant's wildlife value beyond the growing season.
Phytophthora Root Rot
Wilting despite moist soil, yellowing leaves, stunted growth, and dark, decayed roots and crown tissue. Vines may collapse during hot weather.
Plant in well-draining soil and avoid waterlogging. Remove and destroy affected vines. Improve drainage with raised beds or amended soil and avoid overwatering.
Fungal leaf spot
Brown or purplish spots on the leaves, often ringed with a yellow halo, that spread and merge in warm, humid, or wet weather; heavily spotted leaves yellow and drop early.
Pick off spotted leaves and clear fallen debris to remove overwintering spores. Improve air circulation by thinning, and water at the base so foliage dries quickly. If it persists, apply a copper- or sulfur-based fungicide at the first sign.