The Tiger Lily already arrives with spots and swept-back petals and the general energy of a flower that has read its own press and found it satisfactory. The Lime Yellow version has taken this considerable existing confidence and added a color so electric it appears to be generating its own light source. It is the most voltage a lily has ever had, and the lily was not previously lacking in voltage. 4.75 inches across. One screw. No water. The wall it goes on will know this immediately.