Water:
Queen of the night is drought-tolerant and requires thorough watering only when the soil is completely dry, particularly avoiding water accumulation. Water once or twice weekly in growing seasons and less in winter. Use rainwater or distilled water to prevent soil compaction from tap water.
Fertilize:
During growing seasons, fertilize queen of the night monthly with liquid fertilizer; no winter fertilization is needed. Incorporate slow-release fertilizer during repotting. Use nitrogen fertilizer for seedlings and phosphate-potassium before and after blooming. Opt for low-concentration fertilizers, and reduce if yellowing occurs.
Pruning:
Queen of the night features large, fragrant blooms and requires pruning from early to late winter. Remove dead stems and thin overcrowded growth for air circulation, avoiding heavy pruning to support blooming. Regular pruning promotes healthier growth and prolific flowering, while caution is needed due to spiny stems.
Propagation:
Propagation methods for queen of the night include division and grafting. For division, cut stem branches, plant them, and transplant growing shoots. In grafting, place queen of the night on a prepared rootstock, secure, and after 1-2 weeks, the parts unite, allowing the rope to be removed.