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Cephalanthus occidentalis (photo courtesy of Proven Winners)
Cephalanthus occidentalis (photo courtesy of Proven Winners)

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Zone
Zones 2-10, 14-21
Full SunPartial Sun
Full, Partial
Ample WaterRegular Water
Ample, Moderate

Cephalanthus occidentalis

Buttonbush, Button Willow
Rubiaceae
Deciduous, Shrubs, Trees

This rounded shrub grows to 3–15 ft. tall and wide. Its bright green, paired or whorled leaves come out late in spring. Creamy white, slender-tubed flowers crowd into rounded, 1–1 1/2-in.-wide heads in late summer; projecting stigmas give these heads a look one nurseryman described as “golf balls with antennae.” Useful for naturalizing in wet areas. C. o. californicus is very similar.

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