Christmas Cactus - Knowledgebase Question

Harvard, Il
Question by wcarli56
July 21, 2008
I have a Christmas Cactus that hasn't bloom for four years. It used to be my mother's until she passed away. What should I be doing, it used to bloom for her every year between Thanksgiving and Christmas.


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Answer from NGA
July 21, 2008

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Christmas Cactus is a tropical plant that requires a highly organic soil mixture and lots of moisture. The plant likes bright light and average household temperatures. You can take your Christmas Cactus outdoors during the summer and fertilize it monthly with a diluted houseplant food. Then bring it back indoors at the end of September and provide total darkness for 16 hours each day so the plant can set flower buds. The easiest way to accomplish this is to place it in a bright room for 8 hours and then either put a box over it, or put it in a closet for 16 hours. It needs absolute darkness; even a short burst of daylight will retard the formation of flower buds. During this bud forcing period, keep the temperature between 60F and 70F, and do not fertilize the plant. In early December your Christmas Cactus can be brought into ordinary light and will bloom in a few weeks.

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