Hosta Krossa Regal will form a large mound ranging from 45cm to 90cm in height, with a spread of up to 170cm at maturity. This sizeable grey-blue Hosta creates a vase-shaped mound that expands over time. The blue-green leaves are slightly corrugated, widely veined, and have a glaucous-frosty appearance. Light shade is recommended to maintain its blue colouring. Nearly white flowers appear in August on scapes reaching up to 150cm. It is also resistant to slugs.It has received the RHS Award of Garden Merit.