I planted Frans Hals in 2010. It has been a bit of a slow grower for me, but it is in one of my neglected areas. (I have a lot of those!) It blooms nicely in my zone 5 garden in partial shade. I'm actually glad I've not had to divide it yet. A little fertilizer would probably make it happy as well as more sun. This photo is from last year, and you can see it's not overly robust for being 5 years old.
