As the name implies, this is an upright, huge, giant size hosta that towers to 47 inches in height with a spread of 104 inches that was registered by Danny Van Eechaute of Belgium in 2013. The sport of H. 'Empress Wu' has leaves that are dark green, broadly ovate, slightly corrugated and slightly shiny on top. Pale lavender, tubular flowers bloom in June. It sets viable seeds.