How to Fertilize Himalayan foxtail lily?
Balanced perennial feed every four weeks from spring through summer

Himalayan foxtail lily · Eremurus himalaicus
Grow in fertile, sandy, well-drained loam in full sun, with shelter from wind. Mulch with garden compost or bark in autumn, but avoid covering the crown. Young spring growth can be protected with a dry mulch - see Eremurus cultivation
Balanced perennial feed every four weeks from spring through summer