One of the best-liked of all hostas, 'Guacamole' has beautiful shiny chartreuse leaves with blue edges and, in late summer, strongly fragrant white flowers  It grows to 20 inches high and 28 inches wide, loves light shade, and tolerates dry soil. A winner on every count, it was named Hosta of the Year in 2002 by the American Hosta Grower's Association. Note: For a good look at a full-grown 'Guacamole', click here.