It grows-up to a height of 4-6 feet depending on the dept of the swamp or creek it is growing in, maximum spread of 9 inches. It can be grown in a pot. Widely cultivated for its large pink flowers.
The fruits are a conical pod with seeds contained in holes in the pod. When the seeds are ripe, they become loose in the pod. The pod then tips down towards the water, releasing the seeds.
The flowers are redish-purple with darker spots. A rare and vivid colour. It features 2-3 inch long, pendulous flowers on long spikes in late Spring and Summer.