Square-stemmed willowherb

Epilobium tetragonum

Also known as Epilobium tetragonum, Four-angled willowherb, Square-stalked willowherb, Chamaenerion tetragonum

Native Plants · Edibles & Herbs · Willowherb · Epilobium · Wetland Plant · Pollinator · Pink Flowers · Shade Tolerant · Perennial · Wildlife Garden · Streamside · Onagraceae

Square-stemmed willowherb is a slender, upright perennial that prefers moist, partially shaded environments such as stream banks, ditches, and woodland edges. It produces small pink flowers that attract pollinators and requires very little intervention once sited in a suitable damp location. It is best used in naturalized or wildlife garden settings where its spreading habit can be managed.