OK... now I know what "Saskatoon's" are
Theyâ€™re apparently native to Oregon as well as Canada, where most of the growing seems to be done. It also reads as if they'll easily grow from seed â€¦so if you could get some fruit there'd be no need to order plants and mess with inspections, quarantines and customs...
The following is simply a nice photo: http://en.wikipedia.org/wiki/Image:Sask ... erries.jpg
Here's a list with links to a multitude of growers; looks like endless possibilities for advice: http://www.albertafruit.com/farms/
Check here, there's an e-mail link for questions: http://www.saskatoonfarm.com/faq.html
Apparently this grower can't ship to the US due to customs regulations, but nothing about the UK.