ℹ Sunny bright yellow semi-double flowers bloom all summer long! Mont d'Or Cinquefoil AKA Perennial Potentilla is a cousin to the more familiar shrubby Potentilla. Cinquefoil is a clump-forming herbaceous perennial with dark green strawberry-style leaves and trailing stems that tumble over walls, down steps or the edge of containers. Cut down in spring and watch as it regrows beautifully each season after season.