Christmas Catcus - Knowledgebase Question

Murfreesboro, TN
Question by cycogin
May 23, 2007
My father purchased a christmas cactus last december. It is growing rapidly but does have purple ends. It did briefly bloom and then the flowers quickly died. I now have the plant on my back porch and keep the soil moist. Is this the correct care for this plant?


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Answer from NGA
May 23, 2007

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Christmas cactus is a tropical type plant, not quite as drought tolerant as its desert relatives and, in fact, may drop flower buds if the soil gets too dry. The plants will wilt when under drought stress. Water thoroughly when the top inch or so of soil feels dry to the touch. The length of time between waterings will vary with the air temperature, amount of light, rate of growth and relative humidity. You may be overwatering if you keep the soil moist at all times. Allow the top looks dry.

We typically think of cacti as being heat tolerant, but Christmas cacti will keep their blossoms longer in cooler temperatures. Keep the plant in a well-lit location away from drafts from heat vents, fireplaces or other sources of hot air. Drafts and temperature extremes can cause the flower buds to drop from the plant before they have a chance to open.

Christmas cactus will bloom during the holidays if given long uninterrupted dark periods, about 12 hours each night. Begin the dark treatments in about mid-October to have plants in full bloom by the holidays. You can place the plants in a dark closet from about 8 P.M. - 8 A.M. each night for 6-8 weeks or until you see buds forming. Christmas cacti will also bloom if they are subjected to cool temperatures of about 50 to 55 degrees F, eliminating the need for the dark treatments. Plants should be blooming for the holidays if cool treatments are started by early November.

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