How do I make my HUGE poinsetta turn red? It is all green at this time. Also how do I get the christmas cactus to bloom. It blooms in the back room that is cool and not in the warm livingroom.
Both Christmas cactus and poinsettias are triggered into their flowering phase by the shorter day length. They need to follow the natural cycle of sunlight in October for the change to occur. The lights in your living room are preventing these two plants from getting the message the sun is sending them. Move them into the back room and make sure there are no lights on in that room for more than a few moments. Once you see that the cactus is budding or that the poinsettia’s leaves have started to change color, you can bring them back to the living room to enjoy. Once the change starts, it will continue regardless of the light.