I checked the University of Saskatchewan's Plant Science department website. Hope this helps a bit:

"The following companies are importing and selling our Carmine Jewel cherry. They are also testing other varieties from the University of Saskatchewan and may be propagating our varieties that do well in their location.

Gurney's Seed and Nursery Co. http://gurneys.com/
Note: Carmine Jewel was in their printed catalogue but was not on their website Jan 2008

Henry Fields's Seed and Nursery Co. http://henryfields.com/ "

Connie

DNA Gardens exports to the US, only for a minimum of a $ 500. order. These are being exported.....
Konrad

Black Currants
Evans Cherry
Gooseberries
Honeyberries
Lilies
Saskatoons
SK. Crimson Passion - Just certified
SK. Carmine Jewel - Just certified
Sea Buckthorn
Swedish Aspen

We export dormant plant material only so please call to see if we have inventory. If not, order early for delivery the following season.

Here is a link that might be useful: DNA