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Rough Bugleweed

Lycopus asper

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Category
Forb / Wildflower
Sun
Full to Partial
Soil moisture
Wet to Medium-Wet
Bloom time
Jun–Sep
Bloom color
White
Notes
Rhizomatous

About Rough Bugleweed

Rough Bugleweed is a sturdy, rhizomatous perennial that brings structure and ecological value to the wettest corners of the landscape. Growing between 1 and 3 feet tall, this species is distinguished by its stiff, hairy stems and coarsely toothed leaves that give it a 'rough' texture. From June through September, it produces dense whorls of small white flowers that are highly attractive to specialized pollinators and small bees. Native to a wide range of North American wetlands, it is particularly noted for its ability to tolerate alkaline soil conditions. It flourishes in full to partial sun and prefers wet to medium-wet soils, where its spreading root system helps to bind soil and filter water. While it may not be as showy as some garden favorites, its reliability in saturated ground and its contribution to wetland biodiversity make it a valuable addition to any restoration project or rain garden. Its persistent seed heads also provide a modest food source for birds during the winter months.

Native range

Native to 27 states:

AlaskaArizonaCaliforniaColoradoIowaIdahoIllinoisIndianaKansasMassachusettsMichiganMinnesotaMissouriMontanaNorth DakotaNebraskaNew MexicoNevadaNew YorkOhioOregonSouth DakotaTexasUtahWashingtonWisconsinWyoming

County range map

BONAP county-level native range map for Lycopus asper

Range map courtesy of BONAP (Biota of North America Program).

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