Growing Holiday Cactus (Thanksgiving/Crab Cactus): Bloom Trigger & Care

Growing Holiday Cactus

Native to Brazilian rainforests, this epiphytic cactus blooms in late fall. Easy houseplant; can summer outdoors.

Light, Water, Temperature

Bright indirect light or partial shade. More sun okay in winter. Water when top inch of mix is dry; avoid overwatering or bone-dry mix. Less water fall–spring. Active growth (Apr–Sep): 60–80°F. Avoid sudden temperature changes—buds drop.

Fertilizer and Bloom Trigger

Feed monthly Apr–Sep with ¼-strength 20-20-20. For buds: 8 weeks of 13–14 hours darkness, nights 55–65°F, days 65–70°F. Repot every 3 years in well-drained houseplant mix, pot 1″ wider.