Rumex acetosa... has a tap root and cranks out leaves... Dock is supposedly a dynamic accumulator... this brings in native-ish docks (R. obtusa, R. crispus (yea yea I know). I would save these for relatively moist ground (I am on 4 feet of silt loam that floods in winter). They divide very easily for propagation, smother well, and can be cut 3 times a year.
I am testing 4 lupines this year... Lupinus arboreus grows like mad, but is a little woody, and is also an honorary
native with a bad rep in some circles.
I have had been recommended lovage as well and will grow it from seed this year.