Perennial of the Lamiaceae family, Scutellaria baicalensis is native to East Asia, found in Siberia, Mongolia, northern China, and Korea, where it grows in dry meadows, grassy slopes, and rocky steppes, on well-drained and sunny substrates.
It forms upright clumps 30 to 50 cm high, with thin, branched stems bearing narrow, medium green, lanceolate leaves, sessile or nearly so, arranged in opposite pairs along the stems. This slender and elongated foliage gives it an airy appearance, very different from the crenate and rough foliage of Scutellaria alpina.
The bilabiate flowers, in a fairly strong blue-violet to lilac-blue, are arranged unilaterally along well-erect terminal spikes, giving them a particularly neat, slender, and regular silhouette. The upper lip forms a characteristic helmet of the genus. The photos show some variability in shade among individuals, ranging from light lavender blue to a more intense violet-blue.
In its natural habitat, its flowering extends from July to September. In cultivation, it blooms from June to August.
This species holds an important place in traditional Chinese medicine, where its root, known as Huang Qin, has been used for centuries. It is cultivated in full light, in well-drained, dry to fresh soil, and tolerates hot summers well. Robust and long-lived, it is suitable for open rockeries and sunny dry borders.