Teucrium flavum aka Yellow Germander

Teucrium flavum, or yellow germander, comes from the Mediterranean region. It belongs to Lamiaceae, the mint family. It is not native to Britain or Ireland. The name Teucrium discolor is a synonym for this species. This plant grows as a small, deciduous sub-shrub. It has a bushy form and grows in clumps. Its leaves drop rather than staying through winter.

The leaves are green and have a shiny surface. The RHS describes a plant about 1.5 feet [0.45 metres] tall. Its listed garden height range is 1.6–3.3 feet [0.5–1 metre]. The spread falls within the same range. Allow room for that width when placing it among other plants. It takes two to five years to reach full size. Small flowers grow on spikes during summer. Each pale yellow bloom has purple at its base. These two colours give the flowers a contrast against the green leaves.

Choose a sheltered site with full sun for this plant. East-, south-, and west-facing sites suit it. Light soil with good drainage meets its growing needs. The RHS lists chalk, loam, and sand as suitable soils. It accepts acid, neutral, and alkaline soil conditions. Soil may stay moist, provided excess water can drain away. The plant also has drought resistance. This does not remove the need for good drainage. Its UK hardiness rating is H4. That rating covers minimum temperatures from 14–23°F [−10 to −5°C]. It applies to plants grown under UK conditions.

Yellow germander suits beds and borders in cottage-style or informal gardens. Its small size allows it to fit among other border plants. The summer flower spikes add pale colour above the foliage. Prune in spring to keep the plant in shape. Do this before fresh growth starts. Grow new plants from seed or take cuttings. Both softwood and semi-ripe cuttings are suitable ways to propagate it.

The RHS reports few usual pest or disease problems. This does not mean problems can never occur. Take care when handling or placing this plant. It is harmful if eaten, so do not treat it as food. The RHS advises gloves and other protective gear when handling it.