Buttonbush Cephalanthus on stem white - Hardy plantWant to enjoy buttonbush (Cephalanthus occidentalis) everywhere? It's possible with the standard buttonbush. The bush does well in a pot thanks to its stem. This means that the plant is perfect on the patio or balcony as well as in the garden! The white globe shaped flowers bloom in the summer. An added benefit: they attract insects! The occidentalis is fairly winter hardy, although it can be damaged by extreme frost. Position the plant in a sunny