Pontederia cordata is part of the Pontederiaceae family of plants. They also call it Pickerel Weed or Heart-leaved Pickerel Weed. It is a marginal habitat perennial. Pontederia cordata is native to North America, the Caribbean, and south all the way to Argentina. It is a deciduous, clump-forming herbaceous perennial that needs full sun.
It flowers on small erect spikes. The flowers are violet-blue and tubular. Pontederia cordata flowers in late summer. Once flowers get to the seed-stage, the stems bend to get submerged.
How to grow Pontederia cordata:
Pontederia cordata is a wetland plant. Grow it in the sun. Plant Pontederia cordata in shallow water in rich but poorly-drained soil. You can propagate by seeds or division in spring.