May be a fern hybrid, from your 1st pix it would seem to be a landscape planting; maybe you could check the websites of some of your local nurseries or landscape centers and see if you can find something similar.

Hi, I can't seem to see any spore development on any of the fronds. This was the most mature of all of them so I took a pic of the underside anyhow, hoping it will assist in the id. The curliness reminds me of parsley. Thanks Tracy

Hi friends. It has a bit more petals than heritage. Also the petals hold against wind and rain.

Using your genus tip I think it might be Hypericum punctatum (Spotted St. John's-wort). Also looked at H. mutilum and H. boreale but the leaves seemed too small.