Teucrium pyrenaicum aka Pyrenean Germander

Teucrium pyrenaicum is a low, mat-forming plant called Pyrenean germander. It belongs to the mint family, Lamiaceae. Its native range runs from southwest France into northern Spain. It grows in the Pyrenees, often on limestone soils. This small plant has a woody base and evergreen leaves. Sources describe it as a perennial or a small subshrub.

Its trailing stems take root as they spread across soil. These stems build a low mat rather than an upright bush. Reported garden heights range from 0.3–1 foot [0.1–0.3 metres]. The RHS gives the lower height; Missouri Botanical Garden gives the taller limit. Spread also varies between the two accounts. Missouri Botanical Garden lists about 0.75 feet [0.23 metres]. The RHS allows up to 1.6 feet [0.5 metres]. Small, rounded leaves have toothed edges and a light green colour. The RHS describes their surface as woolly. Leaves reach about 0.06 feet [0.02 metres] across.

Flowers rise above the leaves on upright stems. They form whorls grouped near the stem tips. Each flower has two lips, with purple or lavender above. The lower colour is white to cream. Missouri Botanical Garden gives May to June as flowering time. The RHS places the display in summer. These blooms add colour above the low green mat. The plant suits rock gardens, raised beds, and border edges. It also serves as ground cover in small spaces.

Grow it in full sun with shelter and free-draining soil. It accepts poor soil and can cope with drought. Dry to moderately moist conditions suit it best. The RHS lists chalk, clay, loam, and sand as suitable. Good drainage remains essential across these soil types. Neutral or alkaline soil suits its needs. The RHS rates its hardiness H7 under UK conditions. Missouri Botanical Garden lists USDA zones 6–9. Yet winter damage can be serious in the St. Louis area. In very cold places, protect it from excess winter wet.

Routine pruning is not needed, and softwood cuttings provide new plants. The RHS gives two to five years to reach full size. Both garden sources report few pest or disease concerns. Missouri Botanical Garden also notes resistance to deer. The RHS warns that eating this plant can cause harm. It advises gloves and other protection when handling it.