This is a gleaming bit of sunshine carried into your shadowed shade garden and released.  The cupped leaves to just 5" high bring more light to their bit of turf than their size would suggest.  The small light lilac flowers are nice but incidental because with this Hosta it is all about the glow.

Collected in Japan by Tom Mitchell of the late Evolution Plants, this has broadly lanceolate green leaves with tall 30"-36" stems of violet-blue flowers.  If you are into the flashy hosta cultivars, then you can probably give this a miss but if you are a species wonk like we are, then you are kinda obliged.  It is a solid performer and educational when paired with rectifolia hybrids.