On a Hunt

A friend and I are off to some Green houses tonight. I am on a hunt for a specific flower (perennial) that I have not been able to find this year.

"Cupid's Dart grows to two feet tall and perhaps a foot wide. Its slender stems emerge from upright clumps of slim, blue-green, fuzzy leaves that seem a little sticky. Atop the stems form silver buds that open to daisy-like blossoms with papery bracts behind the petals. They’re not in the least heart-shaped, but they are reminiscent of cornflowers as well as daisies." This plant seems to bloom from Aug until Frost and is what I call a "cornflower blue colour".