Liquorice

Liquorice is a fascinating addition to the herb garden, a deep-rooted perennial legume that is historically significant in the UK, particularly around Pontefract. It is a tall, elegant plant reaching up to 1.5 metres, with attractive, pinnate foliage similar to a vetch or laburnum. In late summer, it produces small, pale blue or violet pea-like flowers in loose spikes. While the foliage is decorative, the plant is grown for its sweet, woody roots, which require at least three to four years to reach a harvestable size. It is fully hardy (H7) but requires a very deep, rich, and well-drained soil to allow the roots to penetrate downwards—ideally a sandy loam. It thrives in full sun and requires a long, warm growing season for the best results. The roots are harvested in autumn after the top growth has died back, then dried for use in teas or confectionery.

Sun: Full sun.

Soil: Deep, rich, sandy loam.

Hardiness: H7 — below −20°C.

Flowering: Jun, Jul, Aug.