I have good luck with valerian. I have the white flowering plant. I bought 3 pots several years ago and the tag was kind of iffy on where to plant. Not much info. But sun was needed. However these plants have migrated through out my beds so they must be happy. My leaves are just like your picture. The stalks get tall and the white flowers smell like a vanilla cake. The flowers last for a good while and they and the orange ditch lily are my spring alarms. They signal the growing season. I'm in zone 7a or b depending. The roots can be dried and pulverized to make an herbal treatment for anxiety but don't quote me on this. Look up this plants benefits first. The roots do have a rather unpleasant odor. I do have some that are growing in the shade. They reseeded there. It seems that they are not a heavily rooted plant and can be ripped out easily.
