When deciding where to place your Christmas cactus, opt for areas boasting temperatures of between 15°C (60°F) and 21°C (70°F), as well as medium to high humidity levels.
To boost humidity, try placing a tray of pebbles brimming with water below the pot containing your Christmas cactus. This is a simple means of providing enough moisture without having to worry about overwatering the roots.
The Dormancy Cycle: When the Christmas cactus has stopped flowering (this usually occurs in the autumn months), you should enable the shrub to start its dormancy cycle. You can initiate this by reducing moisture, temperature, and light levels.
You should ensure the shrub gets between 12 and 14 hours of darkness per day and is placed in an area boasting an average temperature of 10°C (50°F) – 12°C (55°F) and away from draughts. When privy to the correct care and placed in the right location, the Christmas cactus can showcase additional blooming cycles over the year.