Pachyphragma macrophyllum (close-up)

Thats a delicate looking bloom Andrew............very pretty

Interesting plant, I don't think I've seen it before. Is it invasive?

It grows from rhizomes and is described as "slow-growing groundcover" by the RHS; I have not had problems with it taking over yet. It was originally classified as a cardamine so that should give you some idea as to its growth patterns

Another healthy plant.

Lovely!