Summersweet

About this plant

Summersweet, or Clethra alnifolia, is a delightful addition to any garden, offering a burst of late-summer interest when many other plants are fading. Its spires of tiny, highly fragrant white flowers emerge in July and August, creating a beautiful contrast against its deep green, lustrous foliage. As an added bonus, the leaves turn a lovely buttery yellow in autumn. Beyond its aesthetic appeal, Clethra alnifolia is a powerhouse for local ecosystems. Its nectar-rich blooms are a magnet for bees, butterflies, and hummingbirds, making it an excellent choice for pollinator gardens. This adaptable shrub tolerates a range of conditions, thriving in both sun and partial shade, and even performing well in moist soil. Easy to care for and relatively pest-free, Summersweet is a low-maintenance gem perfect for borders, foundational plantings, or naturalized areas. Its dense, multi-stemmed growth habit provides year-round structure, while its exquisite summer scent makes it a true garden standout.

Care & maintenance

Easily grown in average to wet, well-drained soils. Prefers acidic conditions. Can tolerate full sun to partial shade; flowering is best in sunnier locations. Prune in late winter or early spring to maintain desired shape and size, as it blooms on new wood. May spread by suckers, which can be removed to control spread.