How to Fertilize Narcissus 'Trepolo'?
Low dose bulb fertilizer before bloom and post flowering

Narcissus 'Trepolo' · Narcissus 'Trepolo'
Plant at one and a half to two times the depth of the bulb in autumn. Will tolerate most soils but prefers moderately fertile, well-drained soil that is constantly moist during the growing season. See daffodil cultivation for further advice
Low dose bulb fertilizer before bloom and post flowering