We’ve only had this native perennial a few years and this is by far the best it’s done in our garden. We have it in a somewhat shady area. Over time it should spread and form a clump, although not so much that it could be considered invasive (like much of what we have). The snapdragon-like flowers are fairly large and as you can see, they are borne in tight, spike-like terminal racemes. They are actually native to a bit further south than we are but have become naturalized over much of the east coast.