Sweet Flag

About Sweet Flag

Sweet Flag is a versatile wetland perennial that brings both structural beauty and a delightful citrus-like fragrance to any water-logged landscape. Unlike its non-native lookalikes, this true North American native features distinctively veined, sword-shaped leaves that can reach nearly four feet in height. In late spring to early summer, it produces unique, finger-like flower spikes called spadices that emerge from the side of the leaf-like stems. Naturally found along mucky shorelines, marshes, and in shallow standing water, Sweet Flag is an excellent choice for stabilizing pond edges or enhancing rain gardens. Ecologically, it provides valuable cover for waterfowl, and its rhizomes are a food source for muskrats. For successful growth, plant in full sun to partial shade in consistently wet, mucky soil. It can even thrive in up to a foot of standing water, making it a robust option for those challenging soggy spots where few other plants can survive.