Chelone glabra
Named for the unique flower shape which resembles the head of a turtle, white turtlehead is found in sunny and moist or wet sites and would do well in a garden under frequent irrigation. It thrives in rich soils and tolerates seasonal flooding. The showy flowers bloom in late summer and early fall, providing an important late-season nectar source for pollinators. Leaves are an attractive, shiny dark green. This plant is resistant to deer browse. Excess shade, drought, and competition from other plants are the main threats to its flourishing. It is pollinated by bumblebees and visited by butterflies and ruby-throated hummingbirds, and is a larval host to the Baltimore checkerspot caterpillar.
Zone: 3-8 (Map)
Habitat: Moist or wet soils. Full to part sun.
Growth: 2 ft wide, 2-4 ft tall at maturity.