Awasome Do Christmas Cactus Need Light References. Web keep your christmas cactus cool between 50°f to 55°f and make sure to limit the amount of light it gets for about six to eight weeks. Do not turn on the lights at night, even if only for a brief time, wherever the plant is put.
[2] keep your christmas cactus away from drafts, heat vents, fireplaces or other sources of hot air. Christmas cactus houseplant care requires the plant to be placed near a bright window, but one where the extreme rays of afternoon sun won’t burn it. Web the christmas cactus light requirement for forcing the plant to set buds in fall is 6 to 8 weeks of receiving only 10 or 11 hours of light each day followed by 13 to 14 hours of complete darkness.
