Hosta June Fever forms a small to medium mound, reaching heights of 36cm-50cm and spreading up to 90cm at maturity. This plant is notable for its bright yellow-green leaves with a soft sheen and a thin, darker green margin. Although it grows more slowly than Hosta June, it achieves a perfectly even shape, making it ideal for containers in shaded or partially sunny areas. The scapes, which reach 60cm, bear pale lavender flowers above the medium mound. Over the season, the leaves transition to chartreuse. The plant exhibits good resistance to slugs and is reported to have good sun tolerance. It has received the RHS Award Of Garden Merit.