1. Thalia dealbata or Water canna
2. Cyperus haspan var. vivipurus or Dward Papyrus/ Sheathed Flatsedge
3. Pontederia cordata var. lanceolata or Pickerel Weed
Thrives under full sun. When we repotted these plants, they suddenly grew to twice the height.
There is another type of Thalia, Thalia geniculata, also known as water canna. But the flowers are different. When we bought our Thalia from nursery, it had not flowered yet, and we assumed it was the geniculata hybrid.
Lesson learnt, buy plants where you can see the flowers. Unless you absolutely trust the nursery.