Since I now know what I’m actually growing I’ve been reading up on Dyer’s Weld (Reseda luteola) – Ida Grae, etc. It can be used fresh or dried and I’ll probably harvest the tops as they bloom and dry them.
I put a yard stick in the picture for size context. Picture below is a 2nd year plant. I’d say it falls between my elbow and shoulder but since I’m behind the camera that doesn’t give anyone an idea of the height.