stiff cowbane
Oxypolis rigidior
USDA zones3 to 9
SunHandles partial sun to partial shade
WaterNeeds wet soil
Sizeup to 5 feet tall
- Habit
- Herb
- Bloom season
- Summer, autumn
- Bloom color
- White , pink
- Soil types
- Sand, loam, clay
Garden uses
Notes
Stiff cowbane (Oxypolis rigidior) is a perennial for meadow gardens. It is hardy to USDA zone 3, or down to -40°F (-40°C). This plant likes part sun or part shade and wet, sandy, loamy, or clay soil. It can reach 60 inches tall. White to pink flowers open from mid to late summer into early autumn. It suits wet meadows, marshy spots, and other damp corners.
Pairs well with Stiff goldenrod, Fox sedge, and Michigan lily.
Native range
AL, AR, DC, DE, and 24 more places. See all 28
AL, AR, DC, DE, FL, GA, IA, IL, IN, KY, LA, MD, MI, MN, MO, MS, NC, NJ, NY, OH, OK, PA, SC, TN, TX, VA, WI, and WV; ON.