low, very low
white, but insignificant
6 to 12 in.
18 to 30 in.
USDA zones 5-8
hardy to 7,000 ft.
Sea Foam sage is a vigorously growing groundcover with silver foliage. Fine, lacy leaves cover the mounded plant. It is grown for its attractive foliage, which looks nice next to plants with larger or greener leaves.
It spreads through underground stems and can fill in an area over time. Sea Foam sage differs from other Artemisias because it will produce upright stalks with tiny, insignificant flowers in summer. These can be cut off to highlight the leaves, if desired.
Sea Foam sage has grown well at the Xeriscape Demonstration Garden.
We prefer to cut off the flower stalks when they appear since its best quality is its beautiful foliage. It needs to be cut back in late winter periodically to prevent the stems from growing too long and flopping. In some areas with overhead sprinklers, Sea Foam sage has developed a leaf fungus. It seems to grow best in areas with drip irrigation.
It has been a very drought-tolerant plant.
To keep the plant compact and tidy, cut the flower stalks back to the level of the mounding branches in summer. In late winter, cut the branches back to about 2 inches above ground level to prevent long, floppy stems from developing.