Scientific Name: Potentilla simplex
Also Known As: Sulfur Cinquefoil
Weed Family: Roseaceae


Cinquefoil is a summer perennial with leaves containing 5 leaflets which are palmately divided on hairy petioles. The leaves have toothed edges and arise from fibrous creeping stems. The root is a fibrous lateral root. The flowers of cinquefoil are sulphur yellow, consisting of 5 petals appearing brighter at the base. Cinquefoil spreads by seed. Cinquefoil is found in the upper two thirds of the United States and in Canada.

Herbicide Use

Make your post-emergence herbicide application to cinquefoil that is actively growing and in the rosette to flower stage of growth.


Germination Dates

Zone-3: May-JuneZone-4: May-JuneZone-5: April-MayZone-6: April-MayZone-7: March-AprilZone-8: March-April