The Potentilla 'Katherine Dykes', Potentilla fruiticosa 'Katherine Dykes', has medium green, glaucous foliage. The graceful arching branches bear lemon yellow 1" blooms. The ease of care, the long flowering period, and versatility combine to make the Potentilla fruiticosa varieties nice shrubs to include in the summer garden. Use Potentillas for seasonal color. They provide garden color for the better part of five months. ... get more information