Discover the captivating allure of Clethra barbinervis, commonly known as Japanese Summer Sweet, an exquisite addition to your garden landscape. This large, upright deciduous shrub or small tree typically reaches heights of 10-20 feet, becoming a striking focal point with its horizontally drooping racemes of fragrant white flowers that bloom mid to late summer. As the seasons change, its serrated, glossy dark green leaves transform into brilliant yellows and reds, painting your garden with autumnal hues. Not only are the blossoms a magnet for butterflies and bees, but the dark brown seed capsules that follow provide winter interest.
Made for gardens in Zone 5 and protected from harsh winds, this plant thrives in consistently moist, humusy, slightly acidic soils, in full sun to part shade. Its polished, grayish-brown bark may exfoliate, adding a unique texture to your landscape. Japanese Summer Sweet is perfect for specimen planting or in small groups on lawns, shrub borders, or woodland gardens, and thrives near streams or ponds. With no serious pest or disease problems, it’s a stress-free choice for your outdoor space, ensuring beauty year-round.