The willow gentian is an undemanding beauty. Tall and graceful, with trumpetof true, intense gentian blue, it is long-lived, hardy and, unlike many members of the genus, lime-tolerant. It is surprisingly .
It is a herbaceous plant withup to 2 feet (60 cm) long carrying pairs of slender, willowlike with the flowers emerging from the axils. As the stems grow, they arch over, so that the whole plant is weeping by flowering time in late summer.
Gentiana asclepiadea likes deep, rich soil, and must have a moist, shady, looking better among shrubs substantial clumps at least 12 inches (30 cm) wide.
There is a white-flowered form, ‘Alba’, worth growing if you have space for both colours, but the blue must have priority.