A perennial from the Lamiaceae family, meadow sage is widely spread across Europe, from the Iberian Peninsula to Central Asia, where it colonizes dry to mesophilic meadows, calcareous lawns, roadsides, and sunny edges, from the plains up to about 1,800 meters in altitude. It is native to France and present in much of temperate Europe.
It forms robust basal rosettes, with oval-oblong, rough, crenate leaves, ranging from medium to dark green, slightly pubescent. The flowering stems are erect, reaching 40 to 80 cm in height, bearing cauline leaves progressively reduced towards the top. The calyces are often tinged with dark purple, giving the spikes a chromatic depth particularly visible up close.
The bilabiate flowers, from blue-violet to true blue-purple, are large for the genus and arranged in well-spaced whorls along the stems. The upper lip is distinctly sickle-shaped, a distinctive feature visible in the field. In its natural habitat, its flowering extends from May to July. In cultivation, a light mowing after the first bloom can induce partial reblooming.
It readily reseeds, gradually colonizing the surroundings of the mother clump, which can be an asset in naturalistic gardens or flowering lawns. It thrives in well-drained, ordinary to calcareous soil, in full sun, and easily withstands summer drought once established. Hardy and undemanding, it abundantly attracts bumblebees and bees.