(Walden West) Large Cross of Hosta ‘White Vision’ and H. ‘Sum and Substance’. Large yellow leaves are bordered in wide blue-green edge. We have always been super fond of this hosta, that can hold the color until frost. H. ‘Paradigm’ can also take almost (not quite but almost) full sun as well. If sighted just right this can become an amazing large hosta with very good substance. White flowers. Hosta of the Year 2007