Storm Cloud Bluestar - Amsonia

Storm Cloud bluestar (*Amsonia tabernaemontana* 'Storm Cloud') sends up unusually dark stems in spring, followed by dark-green leaves with silver veins and light periwinkle-blue, star-shaped flowers. It forms a broad mound and often reblooms after its main late-spring display ([Walters Gardens cultivar profile](https://www.waltersgardens.com/variety.php?ID=AMSSC)). ## Landscape Use Use this full-sized perennial in a sunny border, mass planting, or as a soft, shrub-like anchor where it has room to spread. Walters Gardens lists mature dimensions of 24–30 inches tall by 38–42 inches wide and USDA zones 4–9. The foliage remains useful after flowering, then turns yellow in autumn. ## Growing Conditions Plant in full sun to part shade. Average garden soil with reliable moisture suits it; Walters Gardens lists average to consistent water needs. It tolerates heat and humidity and is usually avoided by deer. Proven Winners reports moderate drought tolerance after establishment, but young plants and extended dry spells still need water ([Proven Winners](https://www.provenwinners.com/p/10706)). ## Seasonal Interest The spring display includes dark emerging stems and blue flowers that continue into early summer; established plants may rebloom. Green foliage carries the planting through summer before turning yellow in fall. ## Maintenance This is generally an easy-care perennial. If stems become open or floppy in shade or rich soil, cut them back by about 6–8 inches after flowering to encourage a fuller shape. Remove dormant stems near the base in late winter or early spring, taking care around new shoots. The RHS also lists chalk, clay, loam, and sandy soils as suitable for this cultivar ([RHS plant profile](https://www.rhs.org.uk/plants/367510/amsonia-tabernaemontana-storm-cloud/details)).