Swertia obtusa – Blue marsh gentian
Syn. S. perennis ssp. obtusa
Native range: Altay region, Russia, Kazakhstan, Mongolia.
Growing conditions: besides streams, forests
Height: 15-60 cm
Hardy to zone: 4
Seed count/package: 20+
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A subspecies of S. perennis, with a narrower distribution; the same blue star-like, interesting flowers, in late summer/fall.
Images: Swertia obtusa
Germination: sown in the fall; cold/moist stratification.
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