Propagating Night-Blooming Cereus (Cereus peruvianus) from Cuttings

A 9-foot tall, 8-year-old cactus blooms once annually with large white orchid-like flowers opening at night. The owner seeks propagation methods and notes the plant's suspected Peruvian origin.

Identification

This is likely Cereus peruvianus (Peruvian apple cactus), though despite its name, it's native to Brazil and Argentina. Long cultivated worldwide, it's naturalized in many regions. The night-blooming habit and 7-year wait for first flowers are characteristic.

Propagation by Cuttings

1. Take cuttings: Use clean tools to remove segments (12-18 inches ideal).
2. Callus formation: Allow cut ends to dry and callus for 2-3 weeks in shade. This prevents rot.
3. Plant: Insert into well-draining cactus mix.
4. Water sparingly: Wait 1 week, then water only when soil is completely dry.
5. Patience: Rooting takes 1-2 months. Resist overwatering.

Spring/early summer is optimal for cuttings. The parent plant's age and size suggest it's well-established—cuttings from mature growth root reliably.