The sphere that stops everything with wings. Cephalanthus occidentalis, Buttonbush, is one of the most important pollinator shrubs in North America and one of the most visually unique plants you can grow. Its perfectly spherical white blooms appear in midsummer, drawing in butterflies, native bees, and hummingbirds in remarkable numbers. Built for wet conditions, it thrives where other shrubs struggle, transforming pond edges and low areas into ecological hotspots. Distinctive globe-shaped white flowers in midsummer Thrives in standing water, pond margins, and wet soils Attracts a wide diversity of pollinators and beneficial insects Seeds support ducks and other waterfowl Stabilizes banks and naturalizes along waterways Things You Probably Didn’t Know It fills a critical seasonal gap. Buttonbush blooms after most spring flowers fade, providing essential nectar during a period when pollinator resources are limited. The plant defends itself. All parts contain compounds that make it toxic if consumed by humans or livestock, helping it establish in areas where grazing pressure is high. Waterfowl depend on it. The seeds are a valuable food source for ducks and other wetland birds, making it a key species in habitat restoration projects. It has a long history of use. Indigenous communities used Buttonbush in traditional medicine for a range of applications, reflecting its chemical complexity. Growing Details Botanical Name: Cephalanthus occidentalis Stratification: Recommended; 60–90 days cold stratification USDA Zones: 5–11 Soil: Prefers wet to moist soils; tolerates standing water Light: Full sun to partial shade Height: 6–12 feet Spread: 6–12 feet Growth Rate: Moderate to fast Plant it at the water's edge and let it turn the wet corner of your property into the most visited spot on the land.
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