This plant combination also would be at home in a container, raised bed or traditional garden bed. Since the summer was unusually dry, I watered them about once a week or more if I noticed a particular plant wilting. Artemisias are silver-leaved with nondescript flowers. Their leaves may be wide and felt-like or very lacy and airy looking. Some have leaves that are grayish-green with a strong overlay of silver coloration, while others seem to be pure silver.
Artemisias strongly prefer a dry, well-drained soil.
There are many varieties available. Consider using these plants near a porch with a light or on a patio. I've found it very hardy to zone 5. The leaves are similar to Dusty Miller which should also be included in a moonlight garden. Dusty Miller occasionally survives zone 5 winters and rewards you with button-like yellow flowers the next spring.