Arctic Root Is Also Known As Rose Root (Rhodiola rosea)

I've been looking for seeds and growing information for a plant known as "Arctic Root" (also from what I've read, "Golden Root", "Rhodiola Rosea", "Rosavin", "Rosavia", and "Snow Rose"), but I havn't been meeting with much success. I've ordered some seeds which I've found hard to get from you folks in the past, so I thought I'd give you call (the nice folks who answered directed me to your email address). I did not see any sign of this plant (by any of the names I know it) on your website, but nevertheless I thought I'd see if you folks might be able to help. Below I've included what little information I've been able to gather from a few books I've been reading that deal with herbs and roots.

Another name for this plant is "roseroot" which is the name we use in our catalogue. Please visit our online catalogue at www.richters.com and search for "roseroot" or "rhodiola rosea".
Richters has pioneered the commercialization of roseroot seeds in North America. We are pleased to be the first nursery in Canada to recognize the importance of this remarkable plant.
For gardeners, this plant is among the hardiest of all herbs: hardy to down to USDA zone 1! The moniker, "arctic root", truly is apt for this plant because it will easily survive the worst cold the arctic can throw at it. It is a slow growing low plant that is worth trying in any well-drained rock garden.
It is worth noting that although the name "arctic root" is used as a common name in several herbal books, the name "Arctic Root?" is a registered trademark for a line of commercial products containing Rhodiola rosea marketed by the Swedish Herbal Institute in the U.S. and Europe.