Orchid cactus stems are broad and flat with serrated edges. They'll grow to 2 ft (60 cm) long, and about 2 in (5 cm) wide. Not very showy, but you can count on them to burst into bloom every spring.
Most Epiphyllum grown today are hybrids and may be pink, red, white, yellow, orange, purple or bicolored. Give your tropical cactus plenty of light and you'll enjoy months of blooms.
Bright light, but no direct sunlight. Insufficient light causes spindly growth and few blooms.
Keep the soil moist spring through fall, while plant is growing.Never allow it to dry out. Shriveled, limp stems are a sign the soil is too dry. Overwatering leads to stem rot; cut off any damaged stems.
Moderate indoor (about 40-50% relative humidity). Stand the pot on a dish of wet pebbles to boost humidity, if necessary.
Average room temperatures 65-75°F/18-24°C. To set flower buds, the plant needs 8-10 weeks of cool 60-65°F/16-18°C days and 45-55°F/7-13°C nights in winter.