We saw these growing at Monticello last fall (picture of flowers at http://www.delanet.com/~dgsmith/monticello/981009_1443.jpg) and I have been requested to grow some. Does anyone know of a catalog with seeds for them? The only place I found them on the web was the garden shop at Monticello, and they are out of stock. Are they edible or strictly ornamental? Thanks, David Smith