How to Fertilize Natal lily?
Optimize bush lily's growth by using high nitrogen fertilizers, applied monthly during spring and summer, the growth period, to promote vigorous foliage and blooming. A quarter of the recommended strength is sufficient to prevent overfertilization. In fall and winter, reduce to bi-monthly as bush lily enters dormancy. Always water bush lily before fertilizing to avoid root burn. For potted bush lily, flush accumulated salts quarterly by running water through the soil for a few minutes. Adherence to these guidelines ensures a flourishing bush lily.