Thursday I went to the Sarah P. Duke Gardens in Durham for the Waterlily Walk. Tamara Kilbane, horticulturist of aquatic plants, did a wonderful job and I'd recommend the tour - it's free and you get a free parking pass if you pre-register for the walk.
These are the Amazon water platters - they are about half grown and they have thorns on the edge of the leaves - quite sharp - and a platter will hold up to 200 pounds.
Lots of information about growing lilies in your pond at home too.
She talked about the soil to use, the pots and the stands the pots sit on, and the height or depth the lily need to be in the pond.
This is a new bog and was just started last year.
The Amazon water platters were amazing - I'm going back in late August when the water platters will be bigger than big!