Large-flowered Water Plantain

About Large-flowered Water Plantain

Large-flowered Water Plantain is an elegant emergent aquatic perennial that brings structural beauty to wetland gardens and pond edges. Rising from mucky soils or shallow water, this plant features a basal clump of large, oval-shaped leaves. From June through September, it sends up a highly branched, airy inflorescence covered in tiny, three-petaled white flowers that seem to float like a mist above the foliage. Native across much of North America, it thrives in marshes, ditches, and slow-moving stream margins. Its seeds provide a valuable food source for waterfowl, while the unique flower structure attracts a variety of small pollinators, including hoverflies and native bees. For best results, plant in full sun to partial shade in saturated soil or water up to six inches deep. It is remarkably resilient, tolerating temporary dry spells better than many other aquatic species once established. It is distinguished from its cousin, Alisma subcordatum, by its slightly larger flowers.