"The Potentilla 'McKay's White', Potentilla fruiticosa 'McKay's White', is a gracefully mounded plant with flowers that are initially creamy-white, later becoming pure white. 'McKay's White' is a shrub with medium to dark green leaves. Flowers are single and individual, with a long bloom time.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."