"Tea" roses won't survive in zone 6.
"Hybrid Tea" roses might survive if you choose a cane hardy variety grafted on the appropriate rootstock and give it ample care and winter protection.
The terminology is a pet peeve of mine. I wish I could grow the antique tea roses that some southern rose gardeners grow. They are so fragrant! When we northern gardeners refer to our "hybrid tea" roses as "tea" roses we confuse our southern sisters (and brothers).
