Hosta Hi-Class will form a medium-sized mound of 45cm-55cm in height and up to 95cm in width at maturity. This variety features exceptionally thick leaves that cup slightly, with a smooth surface. The deep green foliage displays a blue tint during the spring and is bordered by a wide, prominent margin. Resembling a larger Hosta El Nino, Hosta Hi-Class forms an elegant, high-contrast, semi-upright clump that effectively showcases the leaves. In the summer, the leaf centres turn to dark green while the margins turn whiter. The plant maintains its attractive appearance until a hard frost occurs later in the year. Lavender flowers are held on scapes of up to 80cm in July, and continue into August. The thick leaves contribute to its resistance to slugs and tolerance to sunlight, although it thrives best in partial shade.