Sea holly Eryhgium planum and Sedum sarmentosum graveyard moss
Sea Holly although it behaves like a prairie plant is not native. It has however been in North America since the 1800’s. I love it for its true blue color. This small thistle like plant has round umbels with bright steel blue flowers and blue-green bracts, on bright blue stems. The color, although quite bright blue also appears somewhat silvery; so this plant is wonderful in the moon garden and as a backdrop for white flowers. This is one of those plants that will live nearly anywhere, but it is best in full sun and sandy or poor soil and not too wet. If placed in shade or overly rich soil it tends to get bigger and flop over. In preferred conditions it stays about 2 feet tall, fuller and upright. This plant is very drought tolerant once established and is also ignored by deer. It is a super easy care free plant, just cut the taller stems from the basil leaves once a year. I usually do it very late in fall. The plant dries really well and holds its color when dried. If using it for wreaths and arrangements wait until the stems and flowers develop their brightest color.