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A picture of a Amsonia


Amsonia spp.

Rhazya orientalis57692285 by Linda (CC BY 2.0)

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Rhazya orientalis57692285


Commonly called bluestars, the genus Amsonia contains around 20 hardy, clumping perennials. They tend to grow slowly and produce star-shaped blue flowers during summer. Originating from areas in the USA, Asia and Europe, some species in this genus are threatened in the wild.