Storm Cloud Blue Star (Amsonia tabernaemontana 'Storm Cloud')

Storm Cloud Blue Star (Amsonia tabernaemontana 'Storm Cloud') is an upright, mounding perennial with near-black stems and narrow, willow-like olive-green foliage with silver veining. The leaves turn rich golden yellow in fall.

Pyramidal clusters of small, pale periwinkle, star-shaped flowers appear at stem tips from late spring into summer, with possible rebloom. This heat-tolerant selection offers distinctive stems, soft-colored flowers, and fall foliage interest.

Growing details

• Plant type: Perennial
• Species origin: Southern and southeastern North America, including Georgia
• Mature size: 2–3 feet tall and 3–4 feet wide
• Spacing: Approximately 3.5 feet apart
• Hardiness: USDA zones 4–9
• Light: Full sun to part sun
• Soil: Consistently moist, well-drained soil during the growing season
• Flowers: Pale periwinkle stars from late spring into summer; possible rebloom
• Foliage: Narrow olive-green leaves turning golden yellow in fall
• Additional trait: Heat tolerant

Care and garden use

Full sun and consistent moisture encourage the best fall color. Afternoon shade in the South helps flowers last longer. Water regularly during the growing season and avoid letting soil dry out. Cut back after flowering to help prevent flopping.

Use as an accent or in grouped plantings, edging, woodland gardens, or containers. Pair with gayfeather, muhly grass, or phlox for contrasting textures and seasonal color.

Image credit: Photos by Proven Winners, Storm Cloud Blue Star. Plants naturally vary in appearance and may differ from the images shown.