Incredibly showy, cascading green and white foliage. Hosta 'Cool as a Cucumber' is upright in youth, but quickly develops into a gracefully arching mound. The long, tapered leaves have bright green margins which jet towards the clear white center. In early summer, creamy white, 40" scapes carry light lavender flowers. Sport of H. 'Cascades'; it is larger and has heavier substance than its parent.