Hosta October Sky will form a vase-shaped mound of 12"-16" in height, with a spread of up to 32" at maturity. It has a mass of intensely blue leaves that hold their colour late into the season. Leaves are very very blue with a slight waviness to the margin. Intense powder blue, top and bottom of leaf, slight pucker, creamy green with pink blush bracts. Near white flowers held on scapes of 24" tall, in late summer. Slug resistant.