threadleaf blue star

Amsonia hubrichtii (Threadleaf blue star) grows in full-sun to partial shade. It forms a generous bush-like habit that can serve as a backdrop to summer flowers.

Threadleaf blue star is a native to Oklahoma and Arkansas and is a real multi-season performer. In spring the green, narrow, leaves emerge and clusters of powdery-blue flowers bloom in mid-spring. In fall, leaves change to a bright yellow-gold color that dull to tan into winter.

Botanical Name Amsonia hubrichtii
Common Name threadleaf blue star
Family Apocynaceae
USDA Zone 5 thru 8
Light Requirement Full Sun to Part Shade
Season(s) of interest all seasons
Height and Spread 2-3ft x 2-3ft (60-90cm x 60-90cm)
Flower Color Blue
Attracts Wildlife Hosts Caterpillars of Butterflies/Moths, Attracts Pollinators, Rarely Browsed by Mammalian Herbivores
Additional Information Not Native to the US Midwest. Native range: S. Central United States
Location in Lurie Garden Northwest Light Plate, Northeast Light Plate, Southeast Light Plate, Southwest Light Plate


Average Flowering Time