I would think that most gardens have a Potentilla. It’s not a much loved species but it’s ever so common, most usually yellow flowering. We have the yellow but we also have pink, tangerine and white flowering varieties.
If there are any gardens out there with only the yellow or even without a Potentilla, you should put this right straight away. The only drawback to the species is that it’s deciduous – but that’s so often the case – those species with the biggest show of flowers or berries are very often deciduous (there are flowering and berrying evergreens – see website or phone the helpline for details).