C. montana 'Fragrant Spring' only lists non U. S. nurseries. T&L Nursery in Redmond, WA, USA 98052 is a wholesale nursery that provides this clematis to garden stores in WA and OR as part of their regular stock. I purchased my plant from McLendon Hardware in Tacoma, WA. They have a long list of available clematis that they distribute to retail garden centers. Their website is www.TandLnursery.com
if you would like to verify it.