Potentilla Red Ace The reddest of the shrubby cinquefoils, Potentilla fruticosa Red Ace is a small, deciduous shrub with a dense, bushy habit. The small, grey-green leaves are divided into five leaflets. Bright orange-red single flowers with yellow backs to the petals and golden stamens cover the bush from June to September. The flowers tend to fade to orange in very hot weather or fierce sunlight. Potentillas do best in the ground, rather than containers, and in drier, less fertile soils. Potentilla Red Ace is a very easy, trouble-free plant, good at the front of the border. Site: Tolerates exposureSoil: Any light, well drained soil, not too fertilePosition: Full sun or partial shadeSeason of interest: Summer and autumnHardiness: Very hardyHeight: 2’ (60cm) Spread: 2’ (60cm)