The Summersweet bush , scientifically know asClethra alnifolia , belong to the Clethraceae family . It is a deciduous bush , mean it loses its leave-taking during winter . The species name “ alnifolia ” refer to the leaf , which resemble those of alder tree trees ( genus Alnus ) . This plant life is part of a genus that include several species , most of which are aboriginal to East Asia and the Americas .
Summersweet is admired for its aromatic , sweet - sense flowers , which bloom in the summer , hence the common name . The flower are minor , white , and clump in spikes or raceme that can be up to 6 inches long . They attract a diverseness of pollinators include bees , butterfly , and moth . The foliage ofClethra alnifoliaconsists of moody green , glossy , serrated leaves that turn lily-livered to golden in the fall , providing seasonal interest . The shrub typically grows to a height and spreading of 3 to 8 foot , calculate on the variety and stipulation . It has a rounded , pretty spread substance abuse , making it worthy for both as a standalone specimen or in aggregated planting .
Clethra alnifolia is native to the eastern United States , especially in the coastal plain from Maine south to Florida , and Cicily Isabel Fairfield to Texas . It flourish in moist , acidic soils , often found in swamps , peat bog , and along stream coin bank , which reflects its rude habitat preferences . This indicates its sexual love for eminent humidness and well - drain , yet moist soil conditions .
Summersweet has been valued by aboriginal American tribes for its medicative holding ; the bark was used to treat various complaint . European settlers also recognized its ornamental value , leading to its introduction into cultivation for garden . Over time , plantsman have explicate several cultivars to expand the orbit of size , growth habits , and even flower color ( with some varieties offer pink flower ) . Its fragrance and attraction to pollinators have made it a popular choice for landscape room decorator aiming to make wildlife - well-disposed gardens .
Clethra alnifolia is hardy in USDA Hardiness Zones 3 through 9 . This broad range of zones reflects its adaptability but also its penchant for climates that do not experience utmost cold or warmth . In the cool end of its hardiness cooking stove , it might take some wintertime protection or mulching to safeguard the etymon . In warmer geographical zone , see to it it has enough moisture during hot summer is crucial . It ’s peculiarly well - suit to areas where it can do good from the born moisture of wetland or where nurseryman can offer similar conditions through lacrimation and soil direction . Summersweet flourish in partial shade to full sun , with the best flowering occur when it make at least 4 - 6 hours of lineal sun , though in very live climates , good afternoon nicety is beneficial .
