Hosta Atlantis forms a large mound of 65cm-75cm in height, with a spread of up to 165cm at maturity. It is a sport of Hosta Abba Dabba Do, with a significantly wider edge than its parent. The leaves are dark green with golden yellow margins, which tend to be brighter with more sunlight. This plant can form a notable specimen as it matures. In July, tall stems of soft lavender flowers appear, held on scapes of up to 120cm tall. It is a large, slug-resistant Hosta that tolerates partial sun.