Lycopus americanus (Bugleweed) 9 cm Pot

Growth habit & appearance: Lycopus americanus forms elegant upright stems with opposite, sharply serrated leaves and delicate whorls of pale, unobtrusive flowers clustered at the nodes. Its semi-running root system allows it to form loose colonies in damp ground. Grown in our Co. Clare nursery from divisions and cuttings, it develops a clean, green architectural presence typical of moisture-margin Lamiaceae species.

Growing conditions: Hardy in the Irish climate, Bugleweed thrives best in full sun to part shade with consistently moist, humus-rich soil. It is particularly well suited to pond edges, damp borders, or any site that avoids summer drying. Once established outdoors it overwinters reliably, spreading modestly by root extensions. Good airflow prevents overcrowding, and its preference for wet ground allows placement where other perennials may fail.

Traditional & herbal uses: Current phytochemical research highlights the plant’s phenolic acids, flavonoids, and lithospermic-type constituents, which are studied for their influence on cardiac rhythm sensitivity and thyroid-related biochemical pathways. Contemporary herbal literature reports its use for patterns involving palpitations, episodes of nervous over-activation, and as a botanical considered in protocols addressing elevated thyroid activity. Its calming profile also intersects with modern discussions around autonomic regulation.

Maintenance & harvesting: Plant divisions or young potted stock into damp ground and allow space for lateral root spread. Keeping the bed weed-free ensures strong upright growth and maintains clear harvesting access. Aerial parts are gathered when the plant is in full flower, typically mid-season, selecting clean top growth for drying. Cut back spent stems after seed set or once growth naturally declines, encouraging a tidy clump for the following year.