'Spring Sky' Threadleaf Bluestar came into the nursery trade through Philadelphia's Henry Foundation, where it caught the eye of Rick Darke and Dale Hendricks. The flowers are very plentiful and a vivid pale blue for several weeks in May. The delicate green leaves are a little wider than those of A. hubrichtii, and the habit is shorter and more compact. The fall color is shades of yellow and umber.
