Perennial of the Polemoniaceae family, this circumpolar species is native to the arctic and subarctic tundras of Northern Europe, Siberia, and North America, where it colonizes rocky areas, windy grassy slopes, and screes beyond the tree line. In the wild, it forms small compact clumps generally not exceeding 10 to 25 cm.
The foliage is finely divided into oval leaflets arranged in regular pairs along the petiole, giving the leaves the characteristic ladder-like appearance that gives the entire genus the vernacular name of Jacob's ladder. The flowers, in an open cup shape, are lavender-blue to lilac-blue, with protruding stamens with orange-yellow anthers forming a bright and contrasting center.
In its natural habitat, flowering extends from June to August depending on the latitude.
Plants distributed in the horticultural trade under the name Polemonium boreale, sometimes under the cultivar name 'Heavenly Habit', often exhibit a much more developed habit than the wild arctic type, reaching 40 to 60 cm. This difference is likely due in large part to growing conditions — richer soils, longer and warmer summers — which allow this naturally plastic species to express a vigor far superior to that observed in the tundra.
In cultivation, it appreciates a cool, well-drained soil, in sun or light partial shade. Hardy and self-seeding, it is suitable for naturalistic beds and compositions inspired by Nordic or mountainous themes.