Amsonia tabernaemontana var. salicifolia (Threadleaf Bluestar)
We LOVE this selection. It forms extremely vigorous masses of fine textured foliage up to about 4' tall and wide that are topped by sky blue flowers in spring. Good spring pollinator plant, deer resistant and it makes a good cut flower too. Best in full sun on well drained soils. Similar to A. hubrichtii but more robust in growth. For a great example of this in the garden check it out next to the Mary Rounsavall Pavilion the next time you visit Yew Dell during the growing season.