How uplifting are the yellow flowers of goldenrod full of bees foraging for nectar! No wonder it is used against depression and of course for kidney and bladder complaints. I grow two species of goldenrods.One which I could not 100% identify, but it is probably solidago virgaurea, the other one is the Canadian goldenrod, solidago canadensis. The first one is the taller one. I sell only the plant I can 100% identify of course.
Both plants have very similar properties. Goldenrods are very easy to grow, just full sun and well drained soil.
I found that the best information about goldenrod can be found in the book 'Mit Pflanzen verbunden' written by Wolf-Dieter Storl. Unfortunately, the book is written in German, but nevertheless it's a good read.
I offer Canadian Goldenrod here.