Bladdernut (Staphylea trifolia)

Bladdernut (Staphylea trifolia)
Mike Adamovic – Native Plants of the Northeast

Nearly all plants chosen for the yard are picked because of the valuable ecological services they perform or for their physical attractiveness. Bladdernut, however, is normally planted because, in addition to being beautiful and supporting pollinators, possesses a rather rare quality seldom encountered in the plant world. This uncommon shrub is an important component of the winter garden for its aural properties. During strong winds loose seeds in the shrub’s inflated seed pods rattle about producing a conspicuous and pleasing sound. In a sense, they are nature’s wind chimes.

Bladdernut is a 6-12’ shrub that bears trifoliate leaves and has green and white striped/fissured bark. In mid to late spring drooping clusters of white bell-shaped flowers open. After a successful pollination, the nascent seed pods begin to slowly inflate, reaching a maximum size of 2×3.” They vaguely resemble Chinese or paper lanterns. Pods are a green-yellow until autumn after which they dry out and brown. Not until the seeds have fully matured does any rattling take place. Each pod can hold up to three hard and lustrous light brown seeds. Like many other woodland species, these take two years to germinate.

Preferring rich, mesic soils, often with a touch of alkalinity, these shrubs are found in moist woodlands, along the edges of rivers and lakes, and the occasional rocky slope that holds a good deal of loam among boulders or fissures. Bladdernut does best in lightly shaded conditions. Occasionally dense colonies can develop. This is not a frequently encountered shrub in the wild or horticultural trade.

If the area near your home receives filtered light, it’s best to site this species near doors or walkways, that way bladdernut’s winter music can be enjoyed. If shaded conditions cannot be found here, place it along a woodland edge instead. Avoid prolonged periods of direct sunlight. Deer tend to leave this species alone.

Flowers attract a large spread of bees and other pollinators. They appear to be self-incompatible, so be sure to plant at least a couple shrubs. Flowers are better suited for insects with long tongues. There isn’t a great deal of information out there regarding which insects utilize this as a host plant. Those that we do know are attached to the species in some way are the bladdernut plant bug (Lopidea staphyleae), white-marked tussock moth (Orgyia leucostigma), and fall webworm (Hyphantria cunea).