Gentiana asclepiadea

Willow Gentian Ex. Niedere Tauern 1680 m., Austria. Award-winning it is clump-forming with gracefully arching stems bearing lanceolate, willow-like, fresh green. Trumpet-shaped, deep blue flowers 4-5cm in length, appear in the upper leaf axils in late summer and early autumn 30-60 cm. Part sunny or semi-shady place ideal. Soil pH : acid – neutral.

Syrio, CC BY-SA 4.0 <https://creativecommons.org/licenses/by-sa/4.0>, via Wikimedia Commons