American water horehound
Lycopus americanus
USDA zones3 to 9
SunNeeds full shade (under 2 hours)
WaterHandles moist to wet soil
Sizeup to 20 inches tall
- Habit
- Herb
- Bloom season
- Summer, autumn
- Bloom color
- White
- Foliage color
- Green
Notes
American water horehound (Lycopus americanus) is a perennial for rain gardens, pond edges, and wet woodland spots. It is hardy to USDA zone 3, or down to -40°F (-40°C). This plant likes full shade and moist to wet soil. Tiny white flowers cluster around the square stem where opposite leaves join it. It blooms in early to late summer and again in early to mid autumn. It is a non-aromatic mint, so the leaves do not smell minty.
Pairs well with Lizard's tail, Frank's sedge, and New York fern.
Native range
AL, AR, AZ, CA, and 47 more places. See all 51
AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY; NB, NL, NS, and PE.