My wife pointed this out in a garden while on a walk. She would like to add it to our garden but we have no idea what it is. Thanks in advance.

Pulsatilla - Pasque Flower (Pulsatilla grandis subsp. grandis)

They are Pasque flower, Pulsatilla vulgaris. They are very similar to the Prairie Crocus but are larger and bloom for a longer period of time. They come in purples, white and red colours and maybe others I'm not aware of. After the bloom fades they have a fluffy seed head that is attractive as well. I love them, they bloom early in the spring and are easy to grow.