Hosta Blue Cascade forms a medium-sized clump, reaching 30cm-36cm in height, with a spread of up to 80cm when mature. The plant features intense blue-green leaves that are heavily rippled with outward-twisting tips. Its striking colour and form provide a visually pleasing spectacle, reminiscent of a refreshing waterfall, and it retains its blue colouration throughout the summer. In August, the clump produces scapes up to 50cm tall, adorned with purple flowers that have paler lavender stripes.