I have these all over the garden. It's at this time of year that they suddenly start shooting upwards. They self seed and pop up in funny places. A mecca for pollinators, especially Butterflies. Here in Cornwall, they flower from now until November. They may look fragile, but don't be fooled. They are pretty hardy, and can take a lot of buffeting by the elements.
I photgraphed these this morning. They are by my greenhouse, to encourage the pollinators to visit. I loved how the sun seemed to illuminate them. They remain my first gardening love.