How to Fertilize giant American cowslip?
Balanced perennial feed every four weeks from spring through summer

giant American cowslip · Dodecatheon jeffreyi
Also known as: sierra shooting star
Grow in moist but well-drained, humus rich soil in sun or part shade. Needs plenty of moisture while in growth; ideal for planting in a woodland or near a pond or stream
Balanced perennial feed every four weeks from spring through summer