(Bush Cinquefoil) An abundance of large, pure white flowers will keep a smile on your face all season long! Happy Face® White Potentilla White Lady forms large five petaled blooms from spring all the way through to late summer on a dense habit of dark healthy foliage. Potentilla Happy Face® White is an outstanding low-maintenance plant that will add beautiful color to the landscape border or planted in mass and is deer resistant. Prune about a third of the branches to the ground in late winter. A Proven Winners® ColorChoice® Flowering Shrub.