How to Fertilize compass plant?
Balanced perennial feed every four weeks from spring through summer

compass plant · Silphium laciniatum
Also known as: gopher plant; pilot plant; pilot weed; polar plant; ragged cup; rosin weed
Grow in moderately fertile, moist, deep, neutral to slightly alkaline, heavy soil in full sun or partial shade
Balanced perennial feed every four weeks from spring through summer