Gromwell (Lithospermum officinale)

Family: Boraginaceae | Edibility: Edible (1/5)

Lithospermum officinale is a PERENNIAL growing to 0.8 m (2ft 7in). See above for USDA hardiness. It is hardy to UK zone 6. It is in flower from June to July, and the seeds ripen from July to August. The species is hermaphrodite (has both male and female organs) and is pollinated by Bees, flies. Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and prefers well-drained soil.

Edible Parts & Harvest Seasons

Edible Parts: Leaves

Harvest Seasons: Early Summer, Spring

Flavor & Culinary Uses

The leaves are used as a tea substitute. — The leaves are used as a tea substitute.

Habitat & North American Range

Hedges, bushy places and woodland borders, usually on basic soil. (Zone 5, Zone 6, Zone 7, Zone 8, Zone 9)