The leaves can vary from green to solid silver, and all patterns in between. I rather like the green leaved forms in the garden, where they act as a rich foil to the dark flowers. The silver leaved forms have a particular attractiveness, but the effect can be a little busy when they are grouped together.
The paler colours are wonderful, but on a cold day under the winter trees with the
sun streaming in sideways at the speed of light, and the wind streaming in sideways rather faster, there
is nothing like the full blooded magenta to warm the heart and scare the tasteful.