Very robust.  Forms large patches.  Given its potential to be very tall, it may needs to have support from adjacent plants.   Data on salt tolerance comes mostly from northern sources where the source of salt is winter road de-icing. Background plant as tall.

The genus name honors the English botanist William Vernon, who did fieldwork in North America. Moist wildflower garden. Also useful to naturalize along the edges of ponds, wetlands, and streams.