There is a Miscanthus sinensis 'Goliath' and a Miscanthus giganteus. Neither is Pampas Grass, which is Cortaderia selloana.

If it is Miscanthus giganteus, or Miscanthus sinensis 'Goliath' you are looking for try Earthly Pursuits, which I think is the retail sales for Kurt Bluemel. Both are great grasses, we grow both. Giganteus being a little bigger. Polly

Thanks for the quick replies. I was able to order both the Goliath and Giganticus from Earthly Pursuits.
Dan

Giganteus is also sold under the name of Miscanthus sinensis Floridulus. I have grown this in my gardens now for about 7 years and I just love it.

and btw... hardy pampas grass is a common name for Erianthus ravennae grass... reclassed 4 or 5 years ago to Saccharum ravennae. Supposedly someone once thought the Saccharum ravennae grass resembled Cortaderia selloana.
Other than the height the resemblance totally escapes me!