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Cephalanthus occidentalis, commonly known as buttonbush, is a multi-stemmed, deciduous shrub native to wetlands across eastern and central North America, including throughout Illinois. It typically grows 6-12 feet tall and wide, with an upright, rounded habit. Its most distinctive feature is its spherical, pincushion-like white (occasionally pale pink) flower clusters, which appear from June into August and are fragrant, drawing bees, butterflies, hummingbirds, and moths. The flower balls mature into round, crimson-red to brown fruit clusters that persist into winter and feed waterfowl and other wildlife. Buttonbush thrives in consistently moist to wet soil and tolerates standing water, making it a natural fit for rain gardens, bioswales, and pond or stream edges. It does not tolerate drought - in drier, sunnier spots it needs supplemental watering to avoid stress. In the landscape it offers multi-season interest: glossy summer foliage that turns yellow-gold in fall, showy summer blooms, and winter-persistent seed heads. It works well naturalized in wet areas, in mixed borders with reliable moisture, or as a wildlife-garden specimen.
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Attracts Butterflies, Attracts Hummingbirds, Deciduous, Fragrant, Full Sun, Good for Rain Garden, Nativar, Partial Shade, Partial Sun, Perennial, Showy Flowers, Shrub, Wet, Wet Site Tolerant
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