The Potentilla 'Jackman', Potentilla fruticosa 'jackmanii', is a compact upright shrub with brilliant yellow flowers. This deciduous shrub has deep green leaves that make a beatiful backgound for the deep yellow flowers. Jackman Potentillaf fowers from midsummer on to fall.
Potentillas may be the longest blooming shrub with loads of yellow flowers all summer. The bushy plants like sun and are not fussy about soil. They are very hardy and popular.