Lamium galeobdolon "Hermann's Pride" (Deadnettle)
First things first: This is NOT the noxious and aggressive plant that grows from rhizomes that is often sold to unsuspecting customers in many nurseries. Years ago I planted what was labeled Lamiastrum. It is beautiful when in bloom, but it is aggressive beyond words, and as hard as I have tried to eradicate it from my garden, I fear I am stuck with it for the rest of my days. Never, ever buy it. In the same garden, I planted Lamium "Hermann's Pride," and it has been nothing but a model of good behavior and is clump forming, rather than spreading. I am convinced that even though the names Lamiastrum and Lamium are both used for the same plant, there is a distinct difference in the plant shown above and the one that overtakes a garden in the blink of an eye. If you don't believe me, take a look at the picture of Pachysandra on this site, and you will see the bad Lamium in the photo - not the Lamium on this page). "Hermann's Pride" has has smaller, darker variegated leaves than what I call Lamiastrum; it does not spread aggressively by runners and, in fact, hardly even moves a muscle. "Hermann's Pride" grows to about eight inches, has silver-veined, dark green toothed leaves, and bright, happy yellow flowers. It is not invasive or aggressive in the least and makes a very well-behaved, slow-growing accent in full or partial shade, no matter what anyone else says. Zones 6-9. Quarts.