Eastern Bluestar 'Storm Cloud' (Amsonia tabernaemontana 'Storm Cloud') is a standout bluestar selection prized for its dramatic, dark emerging stems and its refined, mounded form. In late spring, clusters of star-shaped, periwinkle-blue flowers appear above narrow, olive-green leaves with lighter veining, creating a cool-toned display that looks at home in both native-style and polished borders.

Plant it where you can enjoy its strong seasonal progression: fresh spring growth and bloom, a tidy summer mound, then a glowing fall finish as the foliage turns golden yellow. Mature plants reach about 24-30 inches tall and spread to roughly 38-42 inches wide, forming a wide, shrub-like clump that brings structure without needing constant attention.

Give it full sun to part shade for best performance. In hotter climates, a little afternoon shade can be helpful, while in cooler regions full sun encourages the densest habit. Average, well-drained soil that holds some moisture is ideal, but once established it can handle short dry spells. Water regularly during the first growing season to build a deep, resilient root system.

Use it as an anchor in mixed perennial plantings, in mass for a soft, billowing effect, or as a specimen where its dark stems and spring flowers can be appreciated up close. After flowering, you can lightly shear or trim if you want a more compact outline, but it is not required for the plant to look good. Cut stems back after frost or in late winter before new growth begins.

Specifications

• Cold hardiness zone: 4-9 (-30 degrees F) - Contact your local extension to confirm hardiness if you are in a fringe zone (we cannot guarantee hardiness in fringe zones)
• Light: Full sun   Part sun
• Growth rate: Slow
• Mature height: 24-30"
• Spread: 38-42"
• Tolerant of: Deer
• Native to the U.S.: Yes

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