http://www.ag.auburn.edu/landscape/images/Pontederia_cordata_(flower).jpg

Class notes: Roots are submerged – ‘submergent’. Good for large space (this sphere). Haze of blue from a far is breath taking – as seen in Central Park New York.

Site/Notes: Native to Eastern North American to Caribbean. Zone 3-10. Full sun. 4 ft tall, 2ft wide. Water/Soil. Ideally grown outside of container where it can spread and colonize. However, if spreading is a concern, leave in container. Rain gardens and ponds. Blue/purple flowers that bloom in June to October.

Aesthetic/Notes: The circular hardscaping contrasted with the purple haze, made this design at Coal Harbour very compelling. I like the idea of using this in a massing situation. It has an ephemeral appearance, however, with a long blooming period.