Propagation protocol for broadleaf arrowhead Sagittaria Latifolia Willd. (Alismataceae)

Broadleaf arrowhead (Sagittaria latifolia Willd. [Alismataceae]), an obligate wetland species found from southern Canada and to northern and western South America, the West Indies, and Hawai'i (Hitchcock and others 2001), may be propagated reliably using seeds or tubers. This species provides both food and cover for many species of birds, mammals, fish, and aquatic insects (Thunhorst 1993). I describe both methods of propagation as they are used by the nursery staff of Environmental Concern, a nonprofit organization on the Eastern Shore of Maryland, to grow this species for use in wetland restoration and construction projects.