I have been looking for grasses very recently and found some nurseries' stock still in dormancy. The pots looked like dead grass. I bought some dormant miscanthus from Bedlam Gardens and it is growing well now. The four businesses listed below all had some nice choices. I had particularly good luck with knowledgeable staff at Bedlam and Ontario. There is a married couple, Barbara and Skip, who are usually out near the trees at Ontario Orchards. They are fantastic! The lady at Bedlam Gardens was willing to dig very small specimens of miscanthus for me so I could afford 10 plants. Don't be shocked at the prices of nice potted specimens. They definitely arent cheap.
Mudlady

Bedlam Gardens 1893 Route 34B, Kingferry, NY 13081 (315) 364-8725.

Ontario Orchards
Route 104 West Oswego, NY 13126
Phone (315) 343-6328 Fax (315) 343-5250

Phoenix Flower Farm Very near Oliver Paine. Google will take you to their web sites and explicit driving directions.
Oliver Paine Greenhouses, Fulton

Squire Farms, Rt. 5 in Elbridge (689-3590) advertised in the Auburn Citizen Zebra grass, usually $12 is on sale at $7.
Mudlady

Thanks! I hesitate to buy something that they might claim is "dormant" that looks dead, when the grasses in my hard are already 12" high, but I'll check those nurseries out. Was just down King Ferry the other day but didn't see Bedlam as I wasn't on 34B, but I'll have to look for it!