Clinopodium nepeta aka Lesser Calamint

Clinopodium nepeta, or lesser calamint, is in the mint family. It is native to northwestern and central Europe. Its range also spans the Mediterranean and northern Iran. It grows in regions with a temperate climate. It has naturalized in Mexico and the United States. This herb has soft stems and lives for several years. Its life can be short, though. Older plant records may name it Calamintha nepeta.

Plants form thick, low mounds with upright, leafy flower stems. They grow 1–1.5 feet [0.30–0.46 metres] tall. In gardens, their spread tends to reach 2 feet [0.61 metres]. Rhizomes, or spreading stems, and fallen seed can widen patches. Stems may also root where they touch the soil. Green stems bear oval leaves in pairs on opposite sides. The leaves have toothed edges and range from gray-green to dark green. Crush them to release a mint scent with lemon or oregano notes.

Small flowers form tubes with two lips in loose groups. Their shades include white, pink, lilac, and pale blue. The main bloom season runs from June through September. Chicago Botanic Garden gives a longer season, from May to October. NC State reports blooms from summer until frost. Bees, butterflies, and other insects visit the blooms. NC State lists the fruit as a capsule. The fine leaves and small blooms suit the front of borders.

Give lesser calamint full sun and soil that drains well. It can also take some light shade in the afternoon. It grows in sand, rocky soil, and loam. Soil can range from slightly acid to slightly alkaline. Keep moisture even, though rooted, well-grown plants can withstand some drought. Most sources place it in USDA zones 5–7. Chicago Botanic Garden also lists zone 4. Heat and damp summer air can spoil the leaves. Missouri Botanical Garden says it grows poorly in the deep South.

Use it beside paths, patios, or in an herb garden. It also suits pots, rock gardens, and low retaining walls. Spreading patches can form a loose ground cover. Cut plants back after bloom for a neat look and fewer seedlings. Grow new plants from seed or split clumps. Serious pests and plant diseases are rare, though powdery mildew can occur. Deer and rabbits tend to leave the plants alone. The leaves can flavor food or make tea. The supplied sources do not show whether other uses are safe. Nor do they show whether the plant is safe for pets.