Lilly of the Nile in white - usually seen in lavender - works well in the ground also - when not blooming it looks a lot like a day lily - winter hardy but probably not while above ground in a pot, it would freeze.
great reuse of cabinet
Ponton et perspective
Räcke - Spalje med ribbor
Cattis och Eiras Trädgårdsdesign: Skapa väggar i trädgården II