Hi I recently read an article about the goji berries and all the nutritioanal value they have. These berries, native to Tibet and China, are apparently an amazing anti-oxidant. Have a look at this link: http://http://www.gojiberryproducts.com/site/928759/page/414693 has anyone in Canada grown them? if so, are they difficult to grow? Also, does anyone have any idea where to buy them?