Watering:
Keep moist but not soggy, water twice per week.
Fertilizer:
Fertilize twice a year with a balanced fertilizer. Also use a balanced liquid fertilizer during growing season.
Re-potting:
Repot into a larger container that will allow for growth. Planting directly into the ground is also an option.
Temperature:
The crinum lily prefers full sun, but it will also grow well in filtered light and partial shade. It is a hardy plant that can withstand extremely low temperatures. Though it prefers hot temperatures, it can withstand cold temperatures as well.