Although this plant is fairly undemanding, a few simple care habits can make all the difference between a leafy cactus and one covered in blossoms.
Light is one of the main factors influencing flowering. While the Christmas cactus tolerates low-light conditions, it will only produce abundant blooms if it receives enough bright, indirect light. The ideal place is near a window with filtered sunlight — bright enough to stimulate buds, but soft enough to avoid burns.
Watering, however, requires a bit of balance. During spring and summer, the plant needs frequent watering to keep the soil slightly moist. The soil should never dry out completely, yet it should not remain soggy either, as this may lead to root rot. Water deeply when the top layer of soil feels dry to the touch, and always let excess water drain away. In autumn and winter, reduce watering slightly, especially once flowering begins.
Temperature also plays a key role in keeping your Christmas cactus happy. The plant thrives in moderate indoor temperatures — ideally between 15°C and 21°C (59°F to 70°F). Avoid sudden temperature changes and never place the cactus near heating vents, stoves, or drafty windows. To boost humidity, which this plant appreciates, place a shallow tray of pebbles and water beneath the pot. As the water evaporates, it will create a humid microclimate around the plant.